QC: King UU / dodmen / Hogg
GP: P Squared / Haund
[OVERVIEW]
Sylveon is one of the best wallbreakers in the UnderUsed tier thanks to Pixilate Hyper Voice being able to blast past frail resistant Pokemon. Its mono-Fairy typing allows it to switch into strong and powerful Dark-, Dragon-, and Fighting-type moves such as Hydreigon's Draco Meteor and Heracross's Close Combat. Sylveon's 95 / 130 special bulk allows it to check some moderately powerful special attackers even if uninvested. Sylveon also gives Florges competition as a cleric, since it has more physical bulk and a more powerful STAB attack. It does, however, lack one-turn recovery unlike Florges. Unfortunately, Sylveon's physical bulk is decidedly mediocre when uninvested, meaning that most strong neutral attacks, and even some resisted ones, can 2HKO it. Also, most Dragon-types generally carry coverage for Fairy-types, meaning Sylveon has to play carefully around them. Furthermore, Sylveon is also held back by a less than stellar base 60 Speed, meaning it can't do much against faster teams that apply a ton of offensive pressure.
[SET]
name: Choice Specs
move 1: Hyper Voice
move 2: Psyshock
move 3: Hidden Power Fire
move 4: Baton Pass / Shadow Ball
item: Choice Specs
ability: Pixilate
nature: Modest
evs: 4 Def / 252 SpA / 252 Spe
[SET COMMENTS]
Moves
========
Hyper Voice is Sylveon's go-to move, as, thanks to Pixilate, it becomes a very powerful STAB move that also bypasses Substitutes. Psyshock provides coverage against Poison-types such as Nidoqueen, Nidoking, and Crobat, although Hyper Voice can blow past these checks with just a little bit of prior damage. Hidden Power Fire is Sylveon's best option for Steel-types such as Escavalier and specially defensive Forretress. Baton Pass is the best option for the fourth moveslot, as it allows Sylveon to provide the team with momentum while also allowing it to get out of any dangerous situations. Shadow Ball can be used over Hidden Power Fire or Psyshock to nail Pokemon such as Metagross and Bronzong harder than its other moves. Hidden Power Ground can be another option over Hidden Power Fire to gain excellent neutral coverage in conjunction with its STAB Hyper Voice.
Set Details
========
Maximum Special Attack and Speed EVs allow Sylveon to hit as hard and as fast as possible. Pixilate allows Sylveon to have a more powerful Fairy-type STAB attack in Hyper Voice. A Modest nature bolsters Sylveon's great base 110 Special Attack, while a Timid nature can surprise opponents by letting Sylveon outspeed more threats while not missing out on any key OHKOs or 2HKOs. Choice Specs further boosts Sylveon's power.
Usage Tips
========
Sylveon is best used on bulky offense teams that appreciate a very powerful wallbreaker with a great all-around typing. Sylveon is fairly physically frail, though, so it must be wary of switching into or staying in on powerful neutral hits, as it has no form of recovery. Sylveon should be wary of certain Dragon-types such as Salamence and Hydreigon, as they could be carrying coverage for it. Sylveon should look for any opportunity to come in safely and proceed to spam Hyper Voice to wear down its checks and counters.
Team Options
========
Krookodile is the best partner for Sylveon, as it can threaten most of Sylveon's checks such as Bronzong, Metagross, Arcanine, and Cresselia by trapping them with Pursuit, crippling them with Knock Off, or hitting them hard with Earthquake. Sylveon helps out Krookodile as well by combating its main checks such as Mandibuzz and Chesnaught. Steel-types such as Cobalion and Doublade have good defensive synergy with Sylveon and can threaten to sweep once Sylveon breaks down walls. Entry hazard support from Pokemon such as Froslass, Tentacruel, and Celebi can chip away at Sylveon's switch-ins, further wearing them down and allowing Sylveon to steamroll the opposing team. Specifically, Forretress can provide Spikes, switch into some of Sylveon's checks, and pivot into it with Volt Switch. Setup sweepers such as Dragon Dance Salamence and Swords Dance Cobalion appreciate Sylveon's ability to wear down their common checks so that they can power through, while Salamence and Cobalion also share type synergy with Sylveon's mono-Fairy typing. Pokemon that can beat opposing Steel-, Poison-, and Fire-types such as Entei, Infernape, and Mamoswine allow Sylveon to freely spam its STAB move.
[SET]
name: Cleric
move 1: Hyper Voice
move 2: Heal Bell
move 3: Wish
move 4: Protect
item: Leftovers
ability: Pixilate
nature: Bold
evs: 252 HP / 252 Def / 4 SpD
[SET COMMENTS]
Moves
========
Even without investment, Hyper Voice is still a moderately powerful STAB move thanks to Pixilate and can still 2HKO certain offensive Pokemon, but it fails to take care of more bulky threats such as Suicune. Heal Bell gives cleric support to the team. Wish allows Sylveon to heal itself and its teammates. Protect allows Sylveon to scout the opponent while guaranteeing it can heal itself. Baton Pass can be an option over Heal Bell to safely heal Sylveon's teammates, but Sylveon then loses out on the ability to provide clerical support for the team.
Set Details
========
Maximum HP and Defense EVs give Sylveon as much physical bulk as possible. A Bold nature further reinforces Sylveon's below-average Defense stat. Leftovers gives Sylveon a way to passively recover HP. Pixilate is used because Sylveon can still hit hard with Hyper Voice even with no investment. An EV spread of 252 HP / 240 Def / 16 SpD with a Calm nature allows Sylveon to take advantage of its amazing base 130 Special Defense while still investing in its Defense. A Bold nature can allow Sylveon to take on physical attacks such as +1 Salamence's Iron Tail and avoid the 2HKO from Choice Band Heracross while having a harder time against strong special attackers such as Kyurem and Mega Sceptile. A Calm nature, however, can let Sylveon take on specially attacking threats better but at the cost of losing to those physical attackers.
Usage Tips
========
This set works better on more balanced teams, as it can offer up big Wishes as well as being able to take on some massive threats such as Salamence and Hydreigon. This set, despite the defensive investment, still needs to be wary of powerful neutral physical hits, as Sylveon can take quite a bit from Choice Band Entei, Choice Band Crobat, Mamoswine, and Mega Swampert.
Team Options
========
Steel-types that appreciate Wish support such as Mega Aggron and Mega Steelix resist Sylveon's Steel weakness and are immune to Sylveon's Poison weakness, while Sylveon can take on Fighting-types for them. Dragon-types such as Hydreigon and Salamence give the team more offensive presence, and while both have access to reliable recovery, they appreciate Sylveon's cleric support because they no longer have to worry about being crippled by status. They also are able to switch into Fire-types such as Entei that can switch into Sylveon with ease. Water-types such as Suicune and Swampert take advantage of Sylveon's fat Wishes while also taking on powerful Fire-types such as Entei. Entry hazard removal from Pokemon like Crobat, Tentacruel, and Empoleon makes sure that Sylveon doesn't get worn down itself while keeping the team at an advantage against the opponent.
[STRATEGY COMMENTS]
Other Options
=============
A Calm Mind set with Pixie Plate can bluff Choice Specs and surprise some of Sylveon's checks and counters or Baton Pass the boosts to another threatening Pokemon. Quick Attack can help pick off weakened threats, but it lacks power due to Sylveon's less than stellar base 65 Attack. Lastly, Hyper Beam can give Sylveon a very powerful nuke, but the recharge turn can give the opposing Pokemon setup opportunities.
Checks and Counters
===================
**Steel-types**: Mega Aggron, Escavalier, and specially defensive Empoleon are at worst 3HKOed by Hyper Voice and have super effective STAB moves to fire back at Sylveon. Mega Aggron and Escavalier still have to be wary of Hidden Power Fire, though, as the former has no reliable recovery and the latter is OHKOed after one switch into Stealth Rock.
**Fire-types**: Entei, Darmanitan, and Arcanine can switch into Sylveon's STAB move, but they also suffer from a nasty Stealth Rock weakness, which means they can be very easily worn down.
**Poison-types**: Nidoqueen and Tentacruel can force Sylveon out with their STAB moves and ability to outspeed it. Both lack reliable recovery, however, meaning Sylveon can wear them down. Mega Beedrill can also check Sylveon offensively, as it can punish Sylveon switching out by using U-turn and gaining momentum off of it. Crobat, while normally not carrying a Poison-type STAB move, can still threaten it out with a powerful Brave Bird.
**Powerful Physical Attackers**: Mamoswine, Krookodile, and Crawdaunt can all break past Sylveon with their STAB moves despite none of them being able to switch into Sylveon's STAB move themselves.
**Specially Bulky Pokemon**: Blissey and Cresselia can switch into Sylveon's Hyper Voice with ease and heal off the damage with Soft-Boiled and Moonlight, respectively. Cresselia can even set up Calm Minds against it, punishing Sylveon for staying in and trying to constantly use Hyper Voice.
GP: P Squared / Haund

[OVERVIEW]
Sylveon is one of the best wallbreakers in the UnderUsed tier thanks to Pixilate Hyper Voice being able to blast past frail resistant Pokemon. Its mono-Fairy typing allows it to switch into strong and powerful Dark-, Dragon-, and Fighting-type moves such as Hydreigon's Draco Meteor and Heracross's Close Combat. Sylveon's 95 / 130 special bulk allows it to check some moderately powerful special attackers even if uninvested. Sylveon also gives Florges competition as a cleric, since it has more physical bulk and a more powerful STAB attack. It does, however, lack one-turn recovery unlike Florges. Unfortunately, Sylveon's physical bulk is decidedly mediocre when uninvested, meaning that most strong neutral attacks, and even some resisted ones, can 2HKO it. Also, most Dragon-types generally carry coverage for Fairy-types, meaning Sylveon has to play carefully around them. Furthermore, Sylveon is also held back by a less than stellar base 60 Speed, meaning it can't do much against faster teams that apply a ton of offensive pressure.
[SET]
name: Choice Specs
move 1: Hyper Voice
move 2: Psyshock
move 3: Hidden Power Fire
move 4: Baton Pass / Shadow Ball
item: Choice Specs
ability: Pixilate
nature: Modest
evs: 4 Def / 252 SpA / 252 Spe
[SET COMMENTS]
Moves
========
Hyper Voice is Sylveon's go-to move, as, thanks to Pixilate, it becomes a very powerful STAB move that also bypasses Substitutes. Psyshock provides coverage against Poison-types such as Nidoqueen, Nidoking, and Crobat, although Hyper Voice can blow past these checks with just a little bit of prior damage. Hidden Power Fire is Sylveon's best option for Steel-types such as Escavalier and specially defensive Forretress. Baton Pass is the best option for the fourth moveslot, as it allows Sylveon to provide the team with momentum while also allowing it to get out of any dangerous situations. Shadow Ball can be used over Hidden Power Fire or Psyshock to nail Pokemon such as Metagross and Bronzong harder than its other moves. Hidden Power Ground can be another option over Hidden Power Fire to gain excellent neutral coverage in conjunction with its STAB Hyper Voice.
Set Details
========
Maximum Special Attack and Speed EVs allow Sylveon to hit as hard and as fast as possible. Pixilate allows Sylveon to have a more powerful Fairy-type STAB attack in Hyper Voice. A Modest nature bolsters Sylveon's great base 110 Special Attack, while a Timid nature can surprise opponents by letting Sylveon outspeed more threats while not missing out on any key OHKOs or 2HKOs. Choice Specs further boosts Sylveon's power.
Usage Tips
========
Sylveon is best used on bulky offense teams that appreciate a very powerful wallbreaker with a great all-around typing. Sylveon is fairly physically frail, though, so it must be wary of switching into or staying in on powerful neutral hits, as it has no form of recovery. Sylveon should be wary of certain Dragon-types such as Salamence and Hydreigon, as they could be carrying coverage for it. Sylveon should look for any opportunity to come in safely and proceed to spam Hyper Voice to wear down its checks and counters.
Team Options
========
Krookodile is the best partner for Sylveon, as it can threaten most of Sylveon's checks such as Bronzong, Metagross, Arcanine, and Cresselia by trapping them with Pursuit, crippling them with Knock Off, or hitting them hard with Earthquake. Sylveon helps out Krookodile as well by combating its main checks such as Mandibuzz and Chesnaught. Steel-types such as Cobalion and Doublade have good defensive synergy with Sylveon and can threaten to sweep once Sylveon breaks down walls. Entry hazard support from Pokemon such as Froslass, Tentacruel, and Celebi can chip away at Sylveon's switch-ins, further wearing them down and allowing Sylveon to steamroll the opposing team. Specifically, Forretress can provide Spikes, switch into some of Sylveon's checks, and pivot into it with Volt Switch. Setup sweepers such as Dragon Dance Salamence and Swords Dance Cobalion appreciate Sylveon's ability to wear down their common checks so that they can power through, while Salamence and Cobalion also share type synergy with Sylveon's mono-Fairy typing. Pokemon that can beat opposing Steel-, Poison-, and Fire-types such as Entei, Infernape, and Mamoswine allow Sylveon to freely spam its STAB move.
[SET]
name: Cleric
move 1: Hyper Voice
move 2: Heal Bell
move 3: Wish
move 4: Protect
item: Leftovers
ability: Pixilate
nature: Bold
evs: 252 HP / 252 Def / 4 SpD
[SET COMMENTS]
Moves
========
Even without investment, Hyper Voice is still a moderately powerful STAB move thanks to Pixilate and can still 2HKO certain offensive Pokemon, but it fails to take care of more bulky threats such as Suicune. Heal Bell gives cleric support to the team. Wish allows Sylveon to heal itself and its teammates. Protect allows Sylveon to scout the opponent while guaranteeing it can heal itself. Baton Pass can be an option over Heal Bell to safely heal Sylveon's teammates, but Sylveon then loses out on the ability to provide clerical support for the team.
Set Details
========
Maximum HP and Defense EVs give Sylveon as much physical bulk as possible. A Bold nature further reinforces Sylveon's below-average Defense stat. Leftovers gives Sylveon a way to passively recover HP. Pixilate is used because Sylveon can still hit hard with Hyper Voice even with no investment. An EV spread of 252 HP / 240 Def / 16 SpD with a Calm nature allows Sylveon to take advantage of its amazing base 130 Special Defense while still investing in its Defense. A Bold nature can allow Sylveon to take on physical attacks such as +1 Salamence's Iron Tail and avoid the 2HKO from Choice Band Heracross while having a harder time against strong special attackers such as Kyurem and Mega Sceptile. A Calm nature, however, can let Sylveon take on specially attacking threats better but at the cost of losing to those physical attackers.
Usage Tips
========
This set works better on more balanced teams, as it can offer up big Wishes as well as being able to take on some massive threats such as Salamence and Hydreigon. This set, despite the defensive investment, still needs to be wary of powerful neutral physical hits, as Sylveon can take quite a bit from Choice Band Entei, Choice Band Crobat, Mamoswine, and Mega Swampert.
Team Options
========
Steel-types that appreciate Wish support such as Mega Aggron and Mega Steelix resist Sylveon's Steel weakness and are immune to Sylveon's Poison weakness, while Sylveon can take on Fighting-types for them. Dragon-types such as Hydreigon and Salamence give the team more offensive presence, and while both have access to reliable recovery, they appreciate Sylveon's cleric support because they no longer have to worry about being crippled by status. They also are able to switch into Fire-types such as Entei that can switch into Sylveon with ease. Water-types such as Suicune and Swampert take advantage of Sylveon's fat Wishes while also taking on powerful Fire-types such as Entei. Entry hazard removal from Pokemon like Crobat, Tentacruel, and Empoleon makes sure that Sylveon doesn't get worn down itself while keeping the team at an advantage against the opponent.
[STRATEGY COMMENTS]
Other Options
=============
A Calm Mind set with Pixie Plate can bluff Choice Specs and surprise some of Sylveon's checks and counters or Baton Pass the boosts to another threatening Pokemon. Quick Attack can help pick off weakened threats, but it lacks power due to Sylveon's less than stellar base 65 Attack. Lastly, Hyper Beam can give Sylveon a very powerful nuke, but the recharge turn can give the opposing Pokemon setup opportunities.
Checks and Counters
===================
**Steel-types**: Mega Aggron, Escavalier, and specially defensive Empoleon are at worst 3HKOed by Hyper Voice and have super effective STAB moves to fire back at Sylveon. Mega Aggron and Escavalier still have to be wary of Hidden Power Fire, though, as the former has no reliable recovery and the latter is OHKOed after one switch into Stealth Rock.
**Fire-types**: Entei, Darmanitan, and Arcanine can switch into Sylveon's STAB move, but they also suffer from a nasty Stealth Rock weakness, which means they can be very easily worn down.
**Poison-types**: Nidoqueen and Tentacruel can force Sylveon out with their STAB moves and ability to outspeed it. Both lack reliable recovery, however, meaning Sylveon can wear them down. Mega Beedrill can also check Sylveon offensively, as it can punish Sylveon switching out by using U-turn and gaining momentum off of it. Crobat, while normally not carrying a Poison-type STAB move, can still threaten it out with a powerful Brave Bird.
**Powerful Physical Attackers**: Mamoswine, Krookodile, and Crawdaunt can all break past Sylveon with their STAB moves despite none of them being able to switch into Sylveon's STAB move themselves.
**Specially Bulky Pokemon**: Blissey and Cresselia can switch into Sylveon's Hyper Voice with ease and heal off the damage with Soft-Boiled and Moonlight, respectively. Cresselia can even set up Calm Minds against it, punishing Sylveon for staying in and trying to constantly use Hyper Voice.
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