Moves

• Last Resort can be powered up into Extreme Evoboost thanks to Eevium Z, giving Eevee +2 boosts in all of its stats. Last Resort itself is impossible to use successfully though, as Baton Pass must be used, and Last Resort's effects reset if you switch out.
• Baton Pass is the main draw to using Eevee, as it allows it to pass the stat boosts from Extreme Evoboost to an ally.
• Substitute allows Eevee to avoid status conditions, and its Substitute can be Baton Passed to an ally.
• Protect is good on Trick Room teams to waste Trick Room turns when you don't want it anymore, as well as being good to scout Z-Moves on Pokemon like Mimikyu.
• Stored Power becomes a 220 Base Power move after Extreme Evoboost and is Eevee's primary means of attacking in situations where it needs to attack on its own, such as against Mega Gengar to stop Perish Song or Taunt, against Toxapex to stop Haze and against Mimikyu if you want to break Disguise before your sweeper comes in.

Set Details

• 204 Speed EVs and a Timid nature allow Eevee to outspeed everything up to Modest Choice Scarf Tapu Lele in Tailwind after Extreme Evoboost.
• 92 Special Attack allows Eevee to OHKO Toxapex with Stored Power after Extreme Evoboost.
• Eevium Z is mandatory in running Eevee since Extreme Evoboost is its only niche.
• Anticipation is good to scout for Pokemon that carry Fighting-type coverage, such as Sacred Sword Aegislash and Focus Blast Alakazam.

Usage Tips

• Speed control is essential when using Eevee, as going first allows Eevee to get boosts before the foe, and potentially allowing it to survive a hit. Tailwind is a huge help against most teams, but against teams with Speed Boost Pokemon such as Blaziken, Trick Room should be used.
• Eevee should be pivoted to be brought in safely, such as from a slow U-turn or via Memento, as its bulk is terrible.
• Eevee can usually set up on defensive Pokemon like Cresselia and Porygon2 due to them not doing much back.
• Eevee is very matchup dependent, so make sure to check the Team Preview to make sure the opponent doesn't have a counter to Eevee, as sometimes it may be better to not bring it if the opponent doesn't have anything that Eevee can set up on, as they can usually force it out or KO it.
• Seeing Eevee in Team Preview usually forces the opponent to prepare for it, so you can use that to your advantage to predict what they're likely to bring - the most important things to watch out for include Mega Gengar, Hippowdon, Toxapex and Primarina, who have access to Taunt, Whirlwind, Haze and Perish Song, respectively. Eevee's teammates should ideally use Taunt on any possible switch ins, as this can be crucial to ensuring a successful sweep with Eevee.
• Eevee becomes a liability after using Baton Pass, so be sure that its teammates can support it and sweep with the boosts it passes.
• Picking the right recipient for Eevee's Baton Pass is essential - against phazers such as Hippowdon, you may want Espeon, as it is immune to phazing moves. However, Clefable might be more helpful against teams where Clefable's bulk might be more suitable, or teams with Curse Mimikyu.

Team Options

• Espeon and Clefable can be great recipients of Baton Pass thanks to their access to Stored Power. Espeon in particular also has Magic Bounce, which makes it immune to status, preventing it from getting worn down by Toxic, and phazing moves like Roar and Whirlwind, while Clefable's Magic Guard helps in matchups against Curse Mimikyu, as the Curse gets Baton Passed, which can stop your sweep.
• Strong Pokemon such as Mega Gyarados and Mega Kangaskhan appreciate the boosts Eevee gives, as both of them gain the ability to break through physical walls after a boost - they also can break through Mimikyu's Disguise thanks to Mold Breaker in Mega Gyarados's case and Parental Bond in Mega Kangaskhan's.
• Supporting Pokemon can help Eevee get a Baton Pass off. Whimsicott in particular is a great candidate for this role, as it can use Memento and Taunt, which lets it enable Eevee to set up freely or force a switch from the foe, and prevent Taunt, Perish Song, Haze and Whirlwind from opposing Pokemon, respectively. It also has access to Tailwind to patch up Eevee's poor Speed. Whimsicott can also use Worry Seed to deal with Serperior, as otherwise it can set up easily on Eevee thanks to Contrary Leaf Storm, and can OHKO Eevee even through the Special Defense boosts. Mental Herb Dusknoir is another potential lead, as it gets access to Taunt, Memento, Haze and Trick Room. Trick Room is good against Pokemon with Speed Boost like Blaziken and against Dragon Dance users. Haze in conjunction with Trick Room is useful to remove potential boosts from opponents. Using a lead that is not Whimsicott is useful in certain situations, such as against Dark-types like Tyranitar and Mega Gyarados, which are immune to Whimsicott's Prankster. A useful teammate to have is a Smeargle with Geomancy, Cotton Guard and Taunt holding a Power Herb, as it can help for matchups against Primarina, Politoed, and Milotic. As those are users of Perish Song and Haze that Eevee can't OHKO, Eevee can be swapped for Smeargle to beat these Pokemon.