Funbot28
Banned deucer.
Taking Mega Gengar (approved by UC on discord)
Got your ghostwriters back, so you think you lit
Rem Belushi, I'm a Ghostbuster, bitch
- Remy Ma
Ready for QC!
Edit: QC [2/2]
QC Stamps: motherlove / ScarfWynaut
GP Stamps: CryoGyro
Overview
Mega Gengar is one of the most dangerous offensive threats in the Balanced Hackmons metagame thanks to its combination of high base 170 Special Attack and base 130 Speed. It also has a great Ghost / Poison offensive typing, which allows it to hit most of the metagame for at least neutral damage. Its typing also grants it a resistance to Fairy and immunity to Normal- and Fighting-type attacks, allowing it to use the combination of Normalize and Entrainment to become untouchable, especially against Imposter users. Abilities such as Dazzling and Queenly Majesty keep setup Mega Gengar sets from being checked by priority moves, and a great STAB option in Moongeist Beam allows it to also bypass certain Unaware Pokemon such as Zygarde-C and Primal Kyogre and also allows it to target Sturdy Shedinja. Mega Gengar is, however, weak to common offensive types such as Dark, Ground, and Psychic. It is also very frail, meaning that it usually cannot endure a hit coming from offensive Pokemon and can easily be revenge killed by priority moves if not equipped with the proper ability or under the effects of Psychic Terrain. It also struggles against counterplay from threats that carry Z-Crystals, Revelation Dance, or Magic Bounce, which are all seeing common use on defensive pivots thanks to Mega Gengar's popularity.
[Normalize]
Gengar-Mega @ Spooky Plate
Ability: Normalize
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Entrainment
- Judgment
- Shell Smash / Quiver Dance
- Taunt / Moongeist Beam / King's Shield
Set Comments
Moves
Entrainment is the focus of this set, as it allows Mega Gengar to effectively be immune to nearly every attacking move from any opposing Pokemon slower then Mega Gengar. It also has the benefit of overwriting popular abilities such as Poison Heal and Regenerator, which can be useful for crippling common users of these abilities such as Primal Kyogre and Solgaleo. Judgment acts as the main STAB move of this set, as it converts into a Ghost-type attack when Mega Gengar is equipped with a Spooky Plate. It also lets Mega Gengar Imposter-proof itself if the Chansey is not running a Spooky Plate or Earth Plate itself. Shell Smash is a great setup move that turns Mega Gengar into a deadly sweeper. It also works well in conjunction with Entrainment, which creates many opportunities to set up once the opposing Pokemon has acquired Normalize. Quiver Dance is another great setup move that allows Mega Gengar to better sustain itself thanks to the increase in Special Defense on top of it not lowering its defensive stats like Shell Smash does. However, Mega Gengar gives up the immediate power and Speed that Shell Smash provides. Taunt is a great utility move that allows Mega Gengar to prevent defensive Pokemon from recovering or using other status moves such as Haze and Whirlwind. It also works well alongside Entrainment, as Mega Gengar can then completely stop the opposing Pokemon from using any type of move. Normal-type Moongeist Beam is a great coverage option that not only allows Mega Gengar to target Normal-types that would like to switch into Judgment, but can also allow it to break through common Unaware walls such as Primal Kyogre and Mega Gyarados. Core Enforcer can be used as an alternative as a means to lure in Magic Bounce threats such as Mega Audino and Registeel, but it is more reliant on predictions in order to work effectively. King's Shield allows Mega Gengar to protect itself from physical priority moves such as Fake Out and Extreme Speed (when affected by abilities such as Aerilate and Refrigerate) and proceed to take the hit the following turn thanks to the Attack drop it causes.
Set Details
Normalize is used because it effectively allows Mega Gengar to neutralize any slower foes when used in conjunction with Entrainment. Spooky Plate is equipped to turn Judgement into a Ghost-type attack, giving Mega Gengar a STAB option that cannot be emulated by Imposter Pokemon if they are not running Spooky Plate as well. EVs are maxed out in every stat except Attack with a Timid Nature to turn Mega Gengar into a fast and powerful special attacker.
Usage Tips
Normalize Mega Gengar can shut down many common defensive walls such as Registeel, Solgaleo, Giratina, Zygarde-C, and Dialga due to it being able to nullify their attacks and prevent them from utilizing their defensive abilities. Therefore, it's best used as a wallbreaker that can weaken the aforementioned Pokemon, allowing other setup sweepers to have a much more easier time performing their role late-game. However, Magic Bounce can be run on any of the mentioned Pokemon above to be able to bounce back the effects of Entrainment, disallowing Mega Gengar to break through these threats if it does not carry Core Enforcer. Scouting for Magic Bounce on these defensive Pokemon is thus key in order to use Mega Gengar efficiently. Note that Mega Gengar can still pressure some of the aforementioned threats with its damage output alone. Even after setting up a Shell Smash, Mega Gengar is still prone to be checked by priority users such as Triage Mega Rayquaza and Refrigerate Kyurem-B. It is best to set up only after potential priority users have been dealt with or if Mega Gengar is under Psychic Terrain. Unaware Pokemon such as Mega Audino and Zygarde-C are able to completely wall this set if it lacks Moongeist Beam. Therefore, it is recommended that its teammates break through the aforementioned checks before it attempts a sweep. Certain threats can opt for options to circumvent the effects of Normalize to catch Mega Gengar off guard, with examples being Waterium Z Primal Kyogre and Revelation Dance Yveltal, meaning that Mega Gengar should scout for these options in order to prevent risking it being revenge killed.
Team Options
Pokemon that can take on Dark-types such as Mega Tyranitar, Mega Gyarados, and Yveltal are crucial. Fairy-types such as Mega Audino and Xerneas are great examples, as not only do they threaten out said Dark-types, the former can check Imposter-copied Mega Gengar through an Unaware set with Haze or Topsy-Turvy, while the latter can set up entry hazards with a Poison Heal set and prevent hazard removal from Dark-types with its STAB attacks, which helps Mega Gengar break through walls and KO Sturdy Shedinja. Partners that can take on priority moves can also be useful to have, as it eases Mega Gengar's capability to set up. Examples include Fur Coat Chansey, Psychic Surge Mega Mewtwo Y, and defensive Steel-types such as Registeel and Aegislash. Other setup sweepers such as Poison Heal Primal Kyogre and Triage Mega Rayquaza appreciate Mega Gengar's ability to weaken defensive walls, while they can threaten offensive Pokemon in return. Entry hazard removal or prevention is also vital in order to sustain Mega Gengar as much as possible. Partners such as Defog Giratina, Rapid Spin Solgaleo, and Magic Bounce Registeel are great examples of this.
[Shell Smash Sweeper]
Gengar-Mega @ Spooky Plate / Focus Sash
Ability: Mold Breaker / Adaptability / Dazzling
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Shell Smash
- Judgment / Moongeist Beam
- Secret Sword
- Sludge Wave / Spore
Set Comments
Moves
Shell Smash is an incredible setup move that ensures that Mega Gengar outspeeds the entire unboosted metagame after one boost while also allowing it to hit incredibly hard. Judgment is a great STAB option when used in conjunction with Spooky Plate to allow Mega Gengar to Imposter-proof itself. Moongeist Beam is an alternative reliable STAB option for Dazzling and Adaptability sets that allows Mega Gengar to bypass abilities that would otherwise interrupt its sweep such as Unaware and Sturdy on Shedinja. Secret Sword is a great coverage move that grants Mega Gengar perfect neutral coverage alongside its Ghost-type attack, allowing it to hit targets such as Mega Tyranitar, Yveltal, Registeel, and Dialga for more damage. It also damages based on Defense, meaning that Mega Gengar can have a much easier time breaking through specially defensive walls. Sludge Wave is a secondary STAB option that is especially useful on Adaptability and Mold Breaker sets, as it allows Mega Gengar to break through Unaware users such as Mega Audino and Yveltal. Sludge Wave is also 4x resisted by Mega Gengar, meaning that it can still check Imposter as well. Spore is a great utility move best used alongside Dazzling sets, since it allows Mega Gengar to put foes such as Regenerator + Assault Vest Primal Kyogre and Yveltal to sleep, enabling it to have an easier time setting up.
Set Details
Mold Breaker is utilized to let Mega Gengar threaten more defensive teams, since it enables Mega Gengar to break through Unaware walls such as Yveltal, Arceus, Mega Gyarados, and Zygarde-C much more easily after one boost while also being able to target Sturdy Shedinja. It is also chosen over simply running Moongeist Beam because most of the aformentioned threats can otherwise take a boosted Moongeist Beam and threaten to revenge kill Mega Gengar in return. Adaptability is an option that grants Mega Gengar more power initially, allowing it to 2HKO defensive threats such as Registeel and Dialga after Stealth Rock with Spooky Plate Judgement. Dazzling is a great ability alongside Shell Smash, as it grants Mega Gengar an immunity to all forms of priority, meaning that it can have a much more easier time sweeping versus offensive teams. Mega Gengar is also immune to Fake Out and Extreme Speed, meaning it can defeat common Dazzling answers in Mold Breaker Regigiggas and Slaking. Spooky Plate is equipped alongside Judgement to grant Mega Gengar a Ghost-type STAB attack that cannot be copied by Imposter users that lack a Spooky Plate of their own. A Focus Sash can be equipped instead to effectively grant Mega Gengar one turn to set up on any one-hit move, which can be crucial since it has very low bulk that usually does not let it withstand neutral hits on its own. However, it leaves Mega Gengar much more vulnerable to Imposter. EVs are maxed out in every stat except Attack with a Timid nature to let Mega Gengar sweep much more easily.
Usage Tips
Mega Gengar is very susceptible to priority unless it chooses to run Dazzling, meaning that it should not begin to set up until all priority attackers have been KOed or if Psychic Terrain is up. Mega Gengar is only an effective sweeper late-game once its checks have been worn down or KOed, as it can easily be checked by threats such as Yveltal and Mega Gyarados if that is not the case. However, Adaptability sets can be used as early-game wallbreakers if needed be. Mega Gengar can usually net the necessary KOes after only one boost, but breaking through more defensive teams can require extra setup boosts. Depending what ability Mega Gengar chooses to run, it can be checked by different threats. For example, Mold Breaker sets cannot deal with priority users, while Dazzling sets struggle to break through Normal-type Unaware walls such as Mega Audino and Arceus. Therefore, bluffing what exact set Mega Gengar is using can be extremely advantageous, especially when bluffing Dazzling. Even with Dazzling, Mega Gengar is neutralized by Prankster Haze, so be wary of common users such as Registeel, Zygarde-C, and Mega Aggron, as they can prevent Mega Gengar from breaking through them. However, Taunt can be run to prevent them from using Haze, although this should only be run on Imposter-proof sets.
Team Options
Partners that can deal with priority moves such as defensive Steel-types like Solgaleo and Registeel can be useful partners due to non-Dazzling Mega Gengar sets being incredibly weak to them. Offensive Fairy-type Pokemon such as Mega Diancie and Xerneas are great partners as well, since they can break through common answers to Mega Gengar like Yveltal and Mega Audino. Additionally, Mega Gengar is able to target common answers to Fairy-types such as Solgaleo and Aegislash for high damage. Entry hazard removal is important for Mega Gengar as well, since it can help preserve its Focus Sash. Common examples include Giratina, Mega Audino, and Yveltal. Entry hazards are also useful, as they aid Mega Gengar in securing useful 2HKOs versus targets such as Yveltal, Zygarde-C, and Assault Vest Primal Kyogre after a boost; it can also be useful in removing Sturdy Shedinja as it comes onto the field. Powerful wallbreakers such as Choice Band Primal Groudon, Choice Specs Mega Rayquaza, and Tough Claws Mega Mewtwo X all appreciate Mega Gengar's capability to take down offensive threats after a setup boost, while they can all break through defensive walls in return. Knock Off support can also be quite viable, as partners carrying the move can get rid of items such as Safety Goggles, which blocks Spore.
Strategy Comments
Other Options
Perish Song can be used on Normalize sets alongside Anchor Shot to allow Mega Gengar to trap and KO opposing threats, while also ensuring it cannot be hit thanks to Entrainment. A set with No Guard + Sing is possible, due to Mega Gengar being able to use a STAB-boosted Hex attack alongside other coverage moves such as Focus Blast. Lovely Kiss can be used over Spore due to its capability to bypass Safety Goggles and Grass-types, but it is less accurate. Mega Gengar can benefit from Toxic Spikes support when equipped with Merciless, being able to break through defensive threats with boosted Hex and Venoshock. However, the set is quite inconsistent and difficult to pull off in practice if the opposing team is able to repeatably remove hazards. Mold Breaker sets can run Pursuit to trap and KO Sturdy Shedinja, but filling a moveslot for such a specific scenario can be difficult due to Mega Gengar already being pressed for moveslots.
Checks and Counters
[Mega Audino]: Safety Goggles Unaware Mega Audino can wall almost all setup Mega Gengar sets that lack Sludge Wave and proceed to steal or neutralize its boosts with Spectral Thief or Haze. However, it does fear Entrainment sets if it is not running Magic Bounce.
[Magic Bounce]: Common Magic Bounce users such as Registeel, Arceus, and Zygarde-C can block the use of Entrainment, making Mega Gengar ineffective against these threats.
[Unaware Dark-types]: Unaware Dark-type Pokemon such as Yveltal and Mega Gyarados have the potential to wall setup sets besides the Mold Breaker variant due to them resisting Mega Gengar's main STAB attack. However, Mega Gengar can choose to run the combination of Mold Breaker and Moonblast to hit them hard.
[Priority]: Priority moves can threaten all Mega Gengar sets besides Dazzling variants due to Mega Gengar's frailty.
[Imposter with Earth Plate]: Imposter Chansey can run Earth Plate to catch Mega Gengar off guard and potentially proceed to sweep. However, this is assuming Chansey wins the Speed tie versus Mega Gengar, meaning it is not a reliable option.
[Faster Offensive Psychic-types]: Faster Psychic-types such as Mega Mewtwo Y and Deoxys-A can outspeed and KO unboosted Mega Gengar if its Focus Sash is broken.
[RegenVest Users]: Regenerator + Assault Vest users such as Mega Gyarados, Yveltal, Primal Kyogre, and Zygarde-C are all able to sustain at least one attack from Mega Gengar (sometimes even boosted ones) and can proceed to severely dent it. However, Mega Gengar can neutralize these threats with either Entrainment + Normalize or Spore.
[Pusuit]: Pursuit can be run on defensive pivots such as Mega Tyranitar, Yveltal, and Mega Gyarados to potentially KO Mega Gengar if it chooses to switch out.
[Knock Off]: Knock Off proves to be a hindrance to Mega Gengar, as not only is it hit super effectively by the move, but it also can lose its Spooky Plate, meaning that sets that rely on this item can no longer fire off STAB Ghost-type attacks.
[Normalize-ignoring Moves]: Revelation Dance and offensive Z-Moves from threats such as Yveltal, Mega Mewtwo Y, Zygarde-C, and Primal Kyogre can surprise Normalize Mega Gengar sets and potentially prevent it from sweeping.

Got your ghostwriters back, so you think you lit
Rem Belushi, I'm a Ghostbuster, bitch
- Remy Ma
Ready for QC!
Edit: QC [2/2]
QC Stamps: motherlove / ScarfWynaut
GP Stamps: CryoGyro
Overview
Mega Gengar is one of the most dangerous offensive threats in the Balanced Hackmons metagame thanks to its combination of high base 170 Special Attack and base 130 Speed. It also has a great Ghost / Poison offensive typing, which allows it to hit most of the metagame for at least neutral damage. Its typing also grants it a resistance to Fairy and immunity to Normal- and Fighting-type attacks, allowing it to use the combination of Normalize and Entrainment to become untouchable, especially against Imposter users. Abilities such as Dazzling and Queenly Majesty keep setup Mega Gengar sets from being checked by priority moves, and a great STAB option in Moongeist Beam allows it to also bypass certain Unaware Pokemon such as Zygarde-C and Primal Kyogre and also allows it to target Sturdy Shedinja. Mega Gengar is, however, weak to common offensive types such as Dark, Ground, and Psychic. It is also very frail, meaning that it usually cannot endure a hit coming from offensive Pokemon and can easily be revenge killed by priority moves if not equipped with the proper ability or under the effects of Psychic Terrain. It also struggles against counterplay from threats that carry Z-Crystals, Revelation Dance, or Magic Bounce, which are all seeing common use on defensive pivots thanks to Mega Gengar's popularity.
[Normalize]
Gengar-Mega @ Spooky Plate
Ability: Normalize
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Entrainment
- Judgment
- Shell Smash / Quiver Dance
- Taunt / Moongeist Beam / King's Shield
Set Comments
Moves
Entrainment is the focus of this set, as it allows Mega Gengar to effectively be immune to nearly every attacking move from any opposing Pokemon slower then Mega Gengar. It also has the benefit of overwriting popular abilities such as Poison Heal and Regenerator, which can be useful for crippling common users of these abilities such as Primal Kyogre and Solgaleo. Judgment acts as the main STAB move of this set, as it converts into a Ghost-type attack when Mega Gengar is equipped with a Spooky Plate. It also lets Mega Gengar Imposter-proof itself if the Chansey is not running a Spooky Plate or Earth Plate itself. Shell Smash is a great setup move that turns Mega Gengar into a deadly sweeper. It also works well in conjunction with Entrainment, which creates many opportunities to set up once the opposing Pokemon has acquired Normalize. Quiver Dance is another great setup move that allows Mega Gengar to better sustain itself thanks to the increase in Special Defense on top of it not lowering its defensive stats like Shell Smash does. However, Mega Gengar gives up the immediate power and Speed that Shell Smash provides. Taunt is a great utility move that allows Mega Gengar to prevent defensive Pokemon from recovering or using other status moves such as Haze and Whirlwind. It also works well alongside Entrainment, as Mega Gengar can then completely stop the opposing Pokemon from using any type of move. Normal-type Moongeist Beam is a great coverage option that not only allows Mega Gengar to target Normal-types that would like to switch into Judgment, but can also allow it to break through common Unaware walls such as Primal Kyogre and Mega Gyarados. Core Enforcer can be used as an alternative as a means to lure in Magic Bounce threats such as Mega Audino and Registeel, but it is more reliant on predictions in order to work effectively. King's Shield allows Mega Gengar to protect itself from physical priority moves such as Fake Out and Extreme Speed (when affected by abilities such as Aerilate and Refrigerate) and proceed to take the hit the following turn thanks to the Attack drop it causes.
Set Details
Normalize is used because it effectively allows Mega Gengar to neutralize any slower foes when used in conjunction with Entrainment. Spooky Plate is equipped to turn Judgement into a Ghost-type attack, giving Mega Gengar a STAB option that cannot be emulated by Imposter Pokemon if they are not running Spooky Plate as well. EVs are maxed out in every stat except Attack with a Timid Nature to turn Mega Gengar into a fast and powerful special attacker.
Usage Tips
Normalize Mega Gengar can shut down many common defensive walls such as Registeel, Solgaleo, Giratina, Zygarde-C, and Dialga due to it being able to nullify their attacks and prevent them from utilizing their defensive abilities. Therefore, it's best used as a wallbreaker that can weaken the aforementioned Pokemon, allowing other setup sweepers to have a much more easier time performing their role late-game. However, Magic Bounce can be run on any of the mentioned Pokemon above to be able to bounce back the effects of Entrainment, disallowing Mega Gengar to break through these threats if it does not carry Core Enforcer. Scouting for Magic Bounce on these defensive Pokemon is thus key in order to use Mega Gengar efficiently. Note that Mega Gengar can still pressure some of the aforementioned threats with its damage output alone. Even after setting up a Shell Smash, Mega Gengar is still prone to be checked by priority users such as Triage Mega Rayquaza and Refrigerate Kyurem-B. It is best to set up only after potential priority users have been dealt with or if Mega Gengar is under Psychic Terrain. Unaware Pokemon such as Mega Audino and Zygarde-C are able to completely wall this set if it lacks Moongeist Beam. Therefore, it is recommended that its teammates break through the aforementioned checks before it attempts a sweep. Certain threats can opt for options to circumvent the effects of Normalize to catch Mega Gengar off guard, with examples being Waterium Z Primal Kyogre and Revelation Dance Yveltal, meaning that Mega Gengar should scout for these options in order to prevent risking it being revenge killed.
Team Options
Pokemon that can take on Dark-types such as Mega Tyranitar, Mega Gyarados, and Yveltal are crucial. Fairy-types such as Mega Audino and Xerneas are great examples, as not only do they threaten out said Dark-types, the former can check Imposter-copied Mega Gengar through an Unaware set with Haze or Topsy-Turvy, while the latter can set up entry hazards with a Poison Heal set and prevent hazard removal from Dark-types with its STAB attacks, which helps Mega Gengar break through walls and KO Sturdy Shedinja. Partners that can take on priority moves can also be useful to have, as it eases Mega Gengar's capability to set up. Examples include Fur Coat Chansey, Psychic Surge Mega Mewtwo Y, and defensive Steel-types such as Registeel and Aegislash. Other setup sweepers such as Poison Heal Primal Kyogre and Triage Mega Rayquaza appreciate Mega Gengar's ability to weaken defensive walls, while they can threaten offensive Pokemon in return. Entry hazard removal or prevention is also vital in order to sustain Mega Gengar as much as possible. Partners such as Defog Giratina, Rapid Spin Solgaleo, and Magic Bounce Registeel are great examples of this.
[Shell Smash Sweeper]
Gengar-Mega @ Spooky Plate / Focus Sash
Ability: Mold Breaker / Adaptability / Dazzling
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Shell Smash
- Judgment / Moongeist Beam
- Secret Sword
- Sludge Wave / Spore
Set Comments
Moves
Shell Smash is an incredible setup move that ensures that Mega Gengar outspeeds the entire unboosted metagame after one boost while also allowing it to hit incredibly hard. Judgment is a great STAB option when used in conjunction with Spooky Plate to allow Mega Gengar to Imposter-proof itself. Moongeist Beam is an alternative reliable STAB option for Dazzling and Adaptability sets that allows Mega Gengar to bypass abilities that would otherwise interrupt its sweep such as Unaware and Sturdy on Shedinja. Secret Sword is a great coverage move that grants Mega Gengar perfect neutral coverage alongside its Ghost-type attack, allowing it to hit targets such as Mega Tyranitar, Yveltal, Registeel, and Dialga for more damage. It also damages based on Defense, meaning that Mega Gengar can have a much easier time breaking through specially defensive walls. Sludge Wave is a secondary STAB option that is especially useful on Adaptability and Mold Breaker sets, as it allows Mega Gengar to break through Unaware users such as Mega Audino and Yveltal. Sludge Wave is also 4x resisted by Mega Gengar, meaning that it can still check Imposter as well. Spore is a great utility move best used alongside Dazzling sets, since it allows Mega Gengar to put foes such as Regenerator + Assault Vest Primal Kyogre and Yveltal to sleep, enabling it to have an easier time setting up.
Set Details
Mold Breaker is utilized to let Mega Gengar threaten more defensive teams, since it enables Mega Gengar to break through Unaware walls such as Yveltal, Arceus, Mega Gyarados, and Zygarde-C much more easily after one boost while also being able to target Sturdy Shedinja. It is also chosen over simply running Moongeist Beam because most of the aformentioned threats can otherwise take a boosted Moongeist Beam and threaten to revenge kill Mega Gengar in return. Adaptability is an option that grants Mega Gengar more power initially, allowing it to 2HKO defensive threats such as Registeel and Dialga after Stealth Rock with Spooky Plate Judgement. Dazzling is a great ability alongside Shell Smash, as it grants Mega Gengar an immunity to all forms of priority, meaning that it can have a much more easier time sweeping versus offensive teams. Mega Gengar is also immune to Fake Out and Extreme Speed, meaning it can defeat common Dazzling answers in Mold Breaker Regigiggas and Slaking. Spooky Plate is equipped alongside Judgement to grant Mega Gengar a Ghost-type STAB attack that cannot be copied by Imposter users that lack a Spooky Plate of their own. A Focus Sash can be equipped instead to effectively grant Mega Gengar one turn to set up on any one-hit move, which can be crucial since it has very low bulk that usually does not let it withstand neutral hits on its own. However, it leaves Mega Gengar much more vulnerable to Imposter. EVs are maxed out in every stat except Attack with a Timid nature to let Mega Gengar sweep much more easily.
Usage Tips
Mega Gengar is very susceptible to priority unless it chooses to run Dazzling, meaning that it should not begin to set up until all priority attackers have been KOed or if Psychic Terrain is up. Mega Gengar is only an effective sweeper late-game once its checks have been worn down or KOed, as it can easily be checked by threats such as Yveltal and Mega Gyarados if that is not the case. However, Adaptability sets can be used as early-game wallbreakers if needed be. Mega Gengar can usually net the necessary KOes after only one boost, but breaking through more defensive teams can require extra setup boosts. Depending what ability Mega Gengar chooses to run, it can be checked by different threats. For example, Mold Breaker sets cannot deal with priority users, while Dazzling sets struggle to break through Normal-type Unaware walls such as Mega Audino and Arceus. Therefore, bluffing what exact set Mega Gengar is using can be extremely advantageous, especially when bluffing Dazzling. Even with Dazzling, Mega Gengar is neutralized by Prankster Haze, so be wary of common users such as Registeel, Zygarde-C, and Mega Aggron, as they can prevent Mega Gengar from breaking through them. However, Taunt can be run to prevent them from using Haze, although this should only be run on Imposter-proof sets.
Team Options
Partners that can deal with priority moves such as defensive Steel-types like Solgaleo and Registeel can be useful partners due to non-Dazzling Mega Gengar sets being incredibly weak to them. Offensive Fairy-type Pokemon such as Mega Diancie and Xerneas are great partners as well, since they can break through common answers to Mega Gengar like Yveltal and Mega Audino. Additionally, Mega Gengar is able to target common answers to Fairy-types such as Solgaleo and Aegislash for high damage. Entry hazard removal is important for Mega Gengar as well, since it can help preserve its Focus Sash. Common examples include Giratina, Mega Audino, and Yveltal. Entry hazards are also useful, as they aid Mega Gengar in securing useful 2HKOs versus targets such as Yveltal, Zygarde-C, and Assault Vest Primal Kyogre after a boost; it can also be useful in removing Sturdy Shedinja as it comes onto the field. Powerful wallbreakers such as Choice Band Primal Groudon, Choice Specs Mega Rayquaza, and Tough Claws Mega Mewtwo X all appreciate Mega Gengar's capability to take down offensive threats after a setup boost, while they can all break through defensive walls in return. Knock Off support can also be quite viable, as partners carrying the move can get rid of items such as Safety Goggles, which blocks Spore.
Strategy Comments
Other Options
Perish Song can be used on Normalize sets alongside Anchor Shot to allow Mega Gengar to trap and KO opposing threats, while also ensuring it cannot be hit thanks to Entrainment. A set with No Guard + Sing is possible, due to Mega Gengar being able to use a STAB-boosted Hex attack alongside other coverage moves such as Focus Blast. Lovely Kiss can be used over Spore due to its capability to bypass Safety Goggles and Grass-types, but it is less accurate. Mega Gengar can benefit from Toxic Spikes support when equipped with Merciless, being able to break through defensive threats with boosted Hex and Venoshock. However, the set is quite inconsistent and difficult to pull off in practice if the opposing team is able to repeatably remove hazards. Mold Breaker sets can run Pursuit to trap and KO Sturdy Shedinja, but filling a moveslot for such a specific scenario can be difficult due to Mega Gengar already being pressed for moveslots.
Checks and Counters
[Mega Audino]: Safety Goggles Unaware Mega Audino can wall almost all setup Mega Gengar sets that lack Sludge Wave and proceed to steal or neutralize its boosts with Spectral Thief or Haze. However, it does fear Entrainment sets if it is not running Magic Bounce.
[Magic Bounce]: Common Magic Bounce users such as Registeel, Arceus, and Zygarde-C can block the use of Entrainment, making Mega Gengar ineffective against these threats.
[Unaware Dark-types]: Unaware Dark-type Pokemon such as Yveltal and Mega Gyarados have the potential to wall setup sets besides the Mold Breaker variant due to them resisting Mega Gengar's main STAB attack. However, Mega Gengar can choose to run the combination of Mold Breaker and Moonblast to hit them hard.
[Priority]: Priority moves can threaten all Mega Gengar sets besides Dazzling variants due to Mega Gengar's frailty.
[Imposter with Earth Plate]: Imposter Chansey can run Earth Plate to catch Mega Gengar off guard and potentially proceed to sweep. However, this is assuming Chansey wins the Speed tie versus Mega Gengar, meaning it is not a reliable option.
[Faster Offensive Psychic-types]: Faster Psychic-types such as Mega Mewtwo Y and Deoxys-A can outspeed and KO unboosted Mega Gengar if its Focus Sash is broken.
[RegenVest Users]: Regenerator + Assault Vest users such as Mega Gyarados, Yveltal, Primal Kyogre, and Zygarde-C are all able to sustain at least one attack from Mega Gengar (sometimes even boosted ones) and can proceed to severely dent it. However, Mega Gengar can neutralize these threats with either Entrainment + Normalize or Spore.
[Pusuit]: Pursuit can be run on defensive pivots such as Mega Tyranitar, Yveltal, and Mega Gyarados to potentially KO Mega Gengar if it chooses to switch out.
[Knock Off]: Knock Off proves to be a hindrance to Mega Gengar, as not only is it hit super effectively by the move, but it also can lose its Spooky Plate, meaning that sets that rely on this item can no longer fire off STAB Ghost-type attacks.
[Normalize-ignoring Moves]: Revelation Dance and offensive Z-Moves from threats such as Yveltal, Mega Mewtwo Y, Zygarde-C, and Primal Kyogre can surprise Normalize Mega Gengar sets and potentially prevent it from sweeping.
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