[OVERVIEW]
Omastar finds its place on most teams as a deadly late-game cleaner thanks to its great base 115 Special Attack and access to Shell Smash, one of the best boosting moves in the game. Its solid base 75 / 125 physical bulk combined with its Rock / Water typing gives it a decent number of setup opportunities against Pokemon such as Fletchinder, Drapion, and Choice-locked Emboar. Sadly, its below-average special bulk and low Speed prior to using Shell Smash mean it can get KOed by decently strong special attacks before it manages to get a boost up. Its typing also gives it uncomfortable weaknesses to Fighting- and Electric-type moves on top of a 4x weakness to Grass-type ones. This is further worsened by the presence of Pokemon such as Venusaur and Virizion, which are bulky enough to tank an unboosted Ice Beam from Omastar and can OHKO it with their Grass-type STAB moves. Omastar's access to both Stealth Rock and Spikes makes it a decent suicide lead, although it struggles heavily against Blastoise, the tier's most popular spinner.
[SET]
name: Shell Smash
move 1: Shell Smash
move 2: Hydro Pump
move 3: Ice Beam
move 4: Hidden Power Grass
item: Shuca Berry
ability: Weak Armor
nature: Timid
evs: 4 Def / 252 SpA / 252 Spe
[SET COMMENTS]
Moves
========
Shell Smash boosts Omastar's Special Attack and Speed by two stages, making it a fearsome sweeper. Hydro Pump is Omastar's main STAB move and hits incredibly hard after a boost. Surf can be used over Hydro Pump if the latter's imperfect accuracy is concerning, although it misses out on a few benchmarks such as a chance to OHKO Meloetta and 2HKO Registeel after Stealth Rock. Ice Beam allows Omastar to hit Grass-types such as Virizion, Venusaur, and Tangrowth super effectively, which would otherwise switch into Hydro Pump comfortably. Hidden Power Grass hits the plethora of bulky Water-types in RU such as Alomomola, Slowking, and Jellicent, which completely tank Omastar's other moves.
Set Details
========
A Timid nature with maximum Special Attack and Speed EVs ensures Omastar is as fast and strong as possible while allowing it to outspeed base 80 Speed Choice Scarf users after a boost. Shuca Berry lets Omastar survive Rhyperior and Flygon's Earthquake after a Defense drop, giving it an opportunity to set up Shell Smash or OHKO them with the respective coverage move. Alternatively, Life Orb increases Omastar's overall damage output, making it much more offensively threatening, although it compromises its longevity. Focus Sash gives Omastar a chance to set up against any one hit that would OHKO it, although it makes it much easier to be picked off by priority attacks. Lum Berry can be used in order to let Omastar set up on Pokemon such as Registeel, Alomomola, and Uxie, which would otherwise cripple it with status ailments.
Usage Tips
========
This set is best used as a late-game cleaner, once Omastar's checks and faster attackers have been weakened or KOed. Take advantage of its typing by setting up on attacks such as Fletchinder's Acrobatics and Choice-locked Emboar's Flare Blitz. Be wary of Choice Scarf users faster than +2 Omastar such as Delphox and Flygon and strong priority users such as Hitmonlee and Absol before setting up. Omastar should be brought in on predicted resisted attacks, via pivoting moves such as U-turn and Volt Switch, or after a teammate has been KOed so as to keep it from being worn down too much.
Team Options
========
Entry hazard support lets Omastar achieve useful KOs, such as on Meloetta and Uxie after Stealth Rock and a bit of prior damage, which would otherwise KO Omastar or cripple it with Thunder Wave, respectively. Options include Stealth Rock from Registeel and Uxie and Spikes from Garbodor and Glalie, the last of which can wear down Water-types with Freeze-Dry. Other Pokemon that can deal with bulky Water-types such as Venusaur and Virizion are greatly appreciated too. Fire- and Flying-types such as Emboar and Braviary can take down Grass-types for Omastar. Wallbreakers such as Exploud and Hitmonlee, which can further wear down special walls, are valuable teammates as well. Barbaracle can be used alongside Omastar, as they both weaken each other's checks. U-turn and Volt Switch users such as Flygon, Scyther, Magneton, and Jolteon can give Omastar an easier time coming in to set up.
[SET]
name: Lead
move 1: Stealth Rock
move 2: Spikes
move 3: Scald
move 4: Ice Beam
item: Focus Sash
ability: Weak Armor
nature: Timid
evs: 4 Def / 252 SpA / 252 Spe
[SET COMMENTS]
Moves
========
Stealth Rock damages the opponent's Pokemon as they switch in. Spikes further damages grounded Pokemon regardless of typing, which can be useful for offensive teams, as it makes late-game cleaning easier. Scald is a useful STAB move due to its 30% burn chance, which can cripple physical attackers for later in the match. Ice Beam serves as coverage for Grass-types and OHKOes the tier's most popular Defog user, Flygon. Icy Wind, although weaker than Ice Beam, allows Omastar to slow down certain key targets such as Venusaur and Virizion and outspeed them after a Weak Armor boost, and it also provides support for slower wallbreakers such as Exploud. Shell Smash and Earth Power instead of Stealth Rock and Ice Beam can also be an option to dissuade Blastoise, which would otherwise easily spin on Omastar.
Set Details
========
As this Omastar set is a suicide lead, a Timid nature is used and EVs are invested in Speed and Special Attack in order to get the most opportunities to set up entry hazards while dealing as much damage as possible. Weak Armor boosts Omastar's Speed after being hit by a contact move. Focus Sash allows Omastar to set up at least one layer of entry hazards unless it gets hit by Taunt.
Usage Tips
========
It is usually best to lead with Omastar to ensure its Focus Sash remains intact. However, if there is a Pokemon that can easily clear the entry hazards Omastar sets up, Omastar can be saved for later in the match. Weak Armor should be taken advantage of when Omastar leads or can switch into weak physical moves, thereby letting it force out certain would-be faster threats with the Speed boost.
Team Options
========
This set best fits on hyper offensive teams, which don't mind losing a teammate early-game. Most offensive Pokemon appreciate the entry hazard support Omastar provides, especially Volt Switch and U-turn users such as Magneton, Flygon, and Scyther (RC) and late-game cleaners such as Virizion, Delphox, and Jolteon. Spinblockers such as Hoopa, Rotom, and Choice Band Trevenant are great partners to have, as Blastoise easily spins against Omastar. Grass-types that can directly pressure Blastoise such as Venusaur and Virizion are also useful. Pokemon that dissuade Flygon from using Defog such as Glalie and Defiant Braviary are valuable teammates as well.
[STRATEGY COMMENTS]
Other Options
=============
Thanks to Swift Swim and its high base 115 Specia Attack, Omastar functions very well as a Choice Specs wallbreaker for rain teams. A physically defensive set with Stealth Rock, Spikes, Scald, and Ice Beam could be opted for, but Omastar lacks reliable recovery and has too many common weaknesses in Fighting, Electric, and, most importantly, Grass. Earth Power guarantees the 2HKO on Registeel after Stealth Rock, but Hidden Power Grass is the preferred coverage option, as it covers more targets. Ancient Power could be used if a Rock-type STAB move is desired, although Ice Beam and Hidden Power Grass provide better overall coverage. A Modest nature could be used on the Shell Smash set for further power, although Omastar then fails to outspeed base 80 Speed Choice Scarf users such as Medicham. Chople Berry can let Omastar survive a Fighting-type priority move once it's weakened, although it still takes too much damage from other Fighting-type attacks, such as Medicham's and Hitmonlee's High Jump Kick. Toxic Spikes can be opted for on the lead set although Venusaur's popularity makes it less appealing, aside from the fact Omastar would have to forgo a coverage move in order to have all three entry hazards.
Checks and Counters
===================
**Specially Bulky Pokemon**: While they can't directly switch into the Shell Smash set, Meloetta and Registeel can survive a +2 Hydro Pump from Omastar and OHKO it with a powerful Psychic-type STAB move or cripple it with Thunder Wave, respectively. Assault Vest users such as Tangrowth and Hariyama also tank Omastar's boosted attacks from full health and OHKO it with STAB attacks of their own.
**Faster Attackers**: Due to Omastar's low base 55 Speed, faster attackers such as Venusaur, Meloetta, and Jolteon can KO it with their STAB attacks. Choice Scarf Delphox, Flygon, and Drapion all manage to outspeed Omastar even after a Shell Smash boost and can heavily damage it with their strong STAB moves.
**Bulky Water-types**: Although they have to watch out for +2 Hidden Power Grass, bulky Water-types such as Slowking and Jellicent can sponge Omastar's other attacks and heavily damage it with Scald. Blastoise stops the suicide lead set cold, as it resists all of Omastar's attacks and can get rid of hazards with Rapid Spin.
**Priority Users**: Strong priority attacks such as Hitmonlee's Mach Punch and Absol's Sucker Punch can pick off Omastar after a Shell Smash boost, although Omastar can manage to survive them if it's healthy enough.
Omastar finds its place on most teams as a deadly late-game cleaner thanks to its great base 115 Special Attack and access to Shell Smash, one of the best boosting moves in the game. Its solid base 75 / 125 physical bulk combined with its Rock / Water typing gives it a decent number of setup opportunities against Pokemon such as Fletchinder, Drapion, and Choice-locked Emboar. Sadly, its below-average special bulk and low Speed prior to using Shell Smash mean it can get KOed by decently strong special attacks before it manages to get a boost up. Its typing also gives it uncomfortable weaknesses to Fighting- and Electric-type moves on top of a 4x weakness to Grass-type ones. This is further worsened by the presence of Pokemon such as Venusaur and Virizion, which are bulky enough to tank an unboosted Ice Beam from Omastar and can OHKO it with their Grass-type STAB moves. Omastar's access to both Stealth Rock and Spikes makes it a decent suicide lead, although it struggles heavily against Blastoise, the tier's most popular spinner.
[SET]
name: Shell Smash
move 1: Shell Smash
move 2: Hydro Pump
move 3: Ice Beam
move 4: Hidden Power Grass
item: Shuca Berry
ability: Weak Armor
nature: Timid
evs: 4 Def / 252 SpA / 252 Spe
[SET COMMENTS]
Moves
========
Shell Smash boosts Omastar's Special Attack and Speed by two stages, making it a fearsome sweeper. Hydro Pump is Omastar's main STAB move and hits incredibly hard after a boost. Surf can be used over Hydro Pump if the latter's imperfect accuracy is concerning, although it misses out on a few benchmarks such as a chance to OHKO Meloetta and 2HKO Registeel after Stealth Rock. Ice Beam allows Omastar to hit Grass-types such as Virizion, Venusaur, and Tangrowth super effectively, which would otherwise switch into Hydro Pump comfortably. Hidden Power Grass hits the plethora of bulky Water-types in RU such as Alomomola, Slowking, and Jellicent, which completely tank Omastar's other moves.
Set Details
========
A Timid nature with maximum Special Attack and Speed EVs ensures Omastar is as fast and strong as possible while allowing it to outspeed base 80 Speed Choice Scarf users after a boost. Shuca Berry lets Omastar survive Rhyperior and Flygon's Earthquake after a Defense drop, giving it an opportunity to set up Shell Smash or OHKO them with the respective coverage move. Alternatively, Life Orb increases Omastar's overall damage output, making it much more offensively threatening, although it compromises its longevity. Focus Sash gives Omastar a chance to set up against any one hit that would OHKO it, although it makes it much easier to be picked off by priority attacks. Lum Berry can be used in order to let Omastar set up on Pokemon such as Registeel, Alomomola, and Uxie, which would otherwise cripple it with status ailments.
Usage Tips
========
This set is best used as a late-game cleaner, once Omastar's checks and faster attackers have been weakened or KOed. Take advantage of its typing by setting up on attacks such as Fletchinder's Acrobatics and Choice-locked Emboar's Flare Blitz. Be wary of Choice Scarf users faster than +2 Omastar such as Delphox and Flygon and strong priority users such as Hitmonlee and Absol before setting up. Omastar should be brought in on predicted resisted attacks, via pivoting moves such as U-turn and Volt Switch, or after a teammate has been KOed so as to keep it from being worn down too much.
Team Options
========
Entry hazard support lets Omastar achieve useful KOs, such as on Meloetta and Uxie after Stealth Rock and a bit of prior damage, which would otherwise KO Omastar or cripple it with Thunder Wave, respectively. Options include Stealth Rock from Registeel and Uxie and Spikes from Garbodor and Glalie, the last of which can wear down Water-types with Freeze-Dry. Other Pokemon that can deal with bulky Water-types such as Venusaur and Virizion are greatly appreciated too. Fire- and Flying-types such as Emboar and Braviary can take down Grass-types for Omastar. Wallbreakers such as Exploud and Hitmonlee, which can further wear down special walls, are valuable teammates as well. Barbaracle can be used alongside Omastar, as they both weaken each other's checks. U-turn and Volt Switch users such as Flygon, Scyther, Magneton, and Jolteon can give Omastar an easier time coming in to set up.
[SET]
name: Lead
move 1: Stealth Rock
move 2: Spikes
move 3: Scald
move 4: Ice Beam
item: Focus Sash
ability: Weak Armor
nature: Timid
evs: 4 Def / 252 SpA / 252 Spe
[SET COMMENTS]
Moves
========
Stealth Rock damages the opponent's Pokemon as they switch in. Spikes further damages grounded Pokemon regardless of typing, which can be useful for offensive teams, as it makes late-game cleaning easier. Scald is a useful STAB move due to its 30% burn chance, which can cripple physical attackers for later in the match. Ice Beam serves as coverage for Grass-types and OHKOes the tier's most popular Defog user, Flygon. Icy Wind, although weaker than Ice Beam, allows Omastar to slow down certain key targets such as Venusaur and Virizion and outspeed them after a Weak Armor boost, and it also provides support for slower wallbreakers such as Exploud. Shell Smash and Earth Power instead of Stealth Rock and Ice Beam can also be an option to dissuade Blastoise, which would otherwise easily spin on Omastar.
Set Details
========
As this Omastar set is a suicide lead, a Timid nature is used and EVs are invested in Speed and Special Attack in order to get the most opportunities to set up entry hazards while dealing as much damage as possible. Weak Armor boosts Omastar's Speed after being hit by a contact move. Focus Sash allows Omastar to set up at least one layer of entry hazards unless it gets hit by Taunt.
Usage Tips
========
It is usually best to lead with Omastar to ensure its Focus Sash remains intact. However, if there is a Pokemon that can easily clear the entry hazards Omastar sets up, Omastar can be saved for later in the match. Weak Armor should be taken advantage of when Omastar leads or can switch into weak physical moves, thereby letting it force out certain would-be faster threats with the Speed boost.
Team Options
========
This set best fits on hyper offensive teams, which don't mind losing a teammate early-game. Most offensive Pokemon appreciate the entry hazard support Omastar provides, especially Volt Switch and U-turn users such as Magneton, Flygon, and Scyther (RC) and late-game cleaners such as Virizion, Delphox, and Jolteon. Spinblockers such as Hoopa, Rotom, and Choice Band Trevenant are great partners to have, as Blastoise easily spins against Omastar. Grass-types that can directly pressure Blastoise such as Venusaur and Virizion are also useful. Pokemon that dissuade Flygon from using Defog such as Glalie and Defiant Braviary are valuable teammates as well.
[STRATEGY COMMENTS]
Other Options
=============
Thanks to Swift Swim and its high base 115 Specia Attack, Omastar functions very well as a Choice Specs wallbreaker for rain teams. A physically defensive set with Stealth Rock, Spikes, Scald, and Ice Beam could be opted for, but Omastar lacks reliable recovery and has too many common weaknesses in Fighting, Electric, and, most importantly, Grass. Earth Power guarantees the 2HKO on Registeel after Stealth Rock, but Hidden Power Grass is the preferred coverage option, as it covers more targets. Ancient Power could be used if a Rock-type STAB move is desired, although Ice Beam and Hidden Power Grass provide better overall coverage. A Modest nature could be used on the Shell Smash set for further power, although Omastar then fails to outspeed base 80 Speed Choice Scarf users such as Medicham. Chople Berry can let Omastar survive a Fighting-type priority move once it's weakened, although it still takes too much damage from other Fighting-type attacks, such as Medicham's and Hitmonlee's High Jump Kick. Toxic Spikes can be opted for on the lead set although Venusaur's popularity makes it less appealing, aside from the fact Omastar would have to forgo a coverage move in order to have all three entry hazards.
Checks and Counters
===================
**Specially Bulky Pokemon**: While they can't directly switch into the Shell Smash set, Meloetta and Registeel can survive a +2 Hydro Pump from Omastar and OHKO it with a powerful Psychic-type STAB move or cripple it with Thunder Wave, respectively. Assault Vest users such as Tangrowth and Hariyama also tank Omastar's boosted attacks from full health and OHKO it with STAB attacks of their own.
**Faster Attackers**: Due to Omastar's low base 55 Speed, faster attackers such as Venusaur, Meloetta, and Jolteon can KO it with their STAB attacks. Choice Scarf Delphox, Flygon, and Drapion all manage to outspeed Omastar even after a Shell Smash boost and can heavily damage it with their strong STAB moves.
**Bulky Water-types**: Although they have to watch out for +2 Hidden Power Grass, bulky Water-types such as Slowking and Jellicent can sponge Omastar's other attacks and heavily damage it with Scald. Blastoise stops the suicide lead set cold, as it resists all of Omastar's attacks and can get rid of hazards with Rapid Spin.
**Priority Users**: Strong priority attacks such as Hitmonlee's Mach Punch and Absol's Sucker Punch can pick off Omastar after a Shell Smash boost, although Omastar can manage to survive them if it's healthy enough.
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