Mewtwo @ Life Orb / Mewtwonite Y
Ability: Pressure -> Insomnia
Level: 50
EVs: 252 Spd / 252 SAtk / 4 HP
Timid Nature
- Psystrike
- Ice Beam
- Flamethrower / Fire Blast
- Calm Mind / Will-O-Wisp
Say hello to the most dangerous mon. Mewtwo-Y has the highest SAtk in the game and incidentally is also the fastest one in Kalos. With its humongous coverage it is able to obliberate almost everything that comes in its way. The higher SDef allows it to setup Calm Mind alongside with Geomancy-Xerneas and survive one Moon Blast while damaging it beyond repair with the physically inclined Psystrike. Flamethrower much more very effective when Kyogre isn't around and OHKO Mega-Lucario and Scizor but only OHKO Mawile 50% of the times. Fire Blast however, always kills.
If you are familiar with prebank Free Battle then you probably realize that people run a lot of Sucker Punches in order to keep it in check. That's where WoW comes into play. No burned opponent can OHKO Mewtwo with a priority move. A Hasty LO Yveltal will do 73 - 86.2% to you when burned and takes a 70.6 - 83.5% Ice Beam in return (add 10% for LO recoil). WoW also checks Mega-Mawile and -Kangaskhan, unless they go for Rlay Rough and Return/PuP respectively - we recommend a healthy Kangaskhan to PuP on Mewtwo because unless it already has +1 from CM, it cannot OHKO you. Adamant Talonflame also does 59.8 - 71.4% to it without CB or LO, so with a bit prior damage you can take it out. Aegislash can check it with a combination of Shadow Ball and Shadow Sneak. Another check is Chople Berry Tyranitar who can KO Mewtwo-Y with Crunch. Note, that in order OHKO a regular Mewtwo cleanly Payback is necessary. Assault Vest Yveltal is able to take on it with Oblivion Wing + Sucker Punch (or just Sucker Punch, when you don't fear WoW). Kangaskhan and Chople-Tar straight up lose to Mewtwo-X but Talonflame and Xerneas like it (Aegislash is kinda indifferent to it).
Xerneas @ Power Herb
Ability: Fairy Aura
Level: 50
EVs: 252 SAtk / 236 HP / 20 SDef
- Geomancy
- Moonblast
- Focus Blast
- Substitute / Psyshock
It is probably no exaggeration to say that this is the most dangerous setup sweeper, moreso in a meta game where switching is not too common. Like Mewtwo it lacks priority moves but thanks the resistance to Dark it is able to set up on Kangaskhan, Yveltal and Tyranitar comfortably. Yveltal is especially notable because it fails to break your subs after Geomancy. +2 Fairy Aura Moonblast will obliterate anything that does not resist it. Even Talonflame is not safe because it will die to the recoil after Moonblast. Special Attacker will have a hard time even scratching it after it has set up. Scizor and Mawile are OHKO by a +2 Focus Blast while BP only does 68.6 - 81.5%. How do you check Xerneas?
Aegislash; in fact, a 252 LO Iron Head followed by Shadow Sneak is enough in to kill Xerneas at any point of the game (hax notwithstanding). Be glad it does not have Earth Power (yet). Otherwise you can try to revenge it but it is surprisingly difficult. Talonflame and Scizor without Choice Band do 36.3 - 43.2% and 50.2 - 60.6%, with is far too low. Scarf-Garchomp does even less damage with Earthquake. Yes, your only option in order not to get obliberated by it is either not letting is set up (which is difficult) or running Aegislash.
Funny anecdote: Once we have caught a Geomancy Xerneas with an Encore from a Jumpluff. Cue ragequitting.
Kangaskhan @ Kangaskhanite
Ability: Scrappy -> Parental Bond
Level: 50
EVs: 4 HP / 252 Spd / 252 Atk
- Return
- Sucker Punch
- Power-Up Punch
- Earthquake / Facade
Kangaskhan sits on a very comfortable speed tier thanks for being faster than both box legendaries and its access to Sucker Punch for Mewtwo. Her other perk is being very bulky. Even Modest Xerneas' Focus Blast won't KO it.
She is best pitted against weakened, slower opponents on who she can set up PuP, most notable Xerneas, Yveltal, some Scizors and especially Tyranitar but she also packs quite a punch without any boosts. Mewtwo cannot OHKO you in an 1on1 and you can't either, so your best bet is either PuP + Sucker Punch, or of you feel extremely ballsy, Facade (+ Sucker Punch). In this generation Facade ignores the Burn status, so that is equal to a OHKO. Without Earthquake it is a bit more diffcult to check Aegislash. As long as you don't run out of PP, Aegislash should not pose a problem. Scizor is 2HKOed by PuP + Sucker Punch. Klefki may become a problem, but a Facade fully powered Facade is nothing to sneeze at. Never try to set up along Xerneas, instead deal as much damage as possible to make it easier to revenge it.
Sableye is probably the only full stop you will ever see, but we cannot estimate how common it will be. In a 1on1 Mewtwo-X always wins thanks to its new typing eliminating the Dark weakness. As said, Geomancy Xerneas can set up on you. LO Xerneas OHKO you with either Focus Blast or Close Combat. Should Mewtwo ever decide that Focus Blast is worth it over Aura Sphere, that one will be an OHKO, too. Offensive Yveltal can take you out with a combination of Oblivion Wing and Sucker Punch. Same as in Xerneas' case it is much easier to deal with Kangaskhan when it cannot set up.
Yveltal @ Life Orb
Ability: Dark Aura
Level: 50
EVs: 4 HP / 252 SAtk / 252 Spd
Timid Nature
- Dark Pulse
- Oblivion Wing
- Sucker Punch
- Taunt / Focus Blast
This one is probably the best Aegislash counters available and is a decent Mewtwo check. Aegislash won't stand a chance even with Weakness Policy because Dark Pulse cuts through its shield like a hot knife through butter. LO-Mewtwo and Mewtwo-Y are OHKOed by Sucker Punch, but you Yveltal needs to watch out for Will-O-Wisp, which is very likely a OHKO in conjunction with Ice Beam/StoneEdge. The safest bet would be a Oblivion Wing in order to scout for WoW and to make the opponent believe you don't have Sucker Punch in your moveset but followed by a real Sucker Punch, which will finish the opponent off even when you are burned; it also has the nice side effect that you don't lose to Bulk Up Mewtwo-X.
Despite Focus Blast being in the movepool it should not be used against Kangaskhan because if the accurracy and the shaky damage rolls. She should be dealt with Oblivion Wing and Sucker Punch. Usually Kangaskhan can KO you with Return followed by her own faster Sucker Punch, but Oblivion Wing alleviates the Sucker Punch and the LO recoil. You have 202 HP and OB heals at least 61 damage, which puts you firmly on 263 - 20 = 243. Return + Sucker Punch form Kangaskhan deal a maximum amount of damage of 214, which is more than your maximum HP but still less than minimum OB heal and two turns of LO recoil.
This one is setup bait for Xerneas and therefore should always be used in conjunction with Aegislash when Xerneas is in the opponent's team. Tyranitar and Yveltal both OHKO each other with Stone Edge and Focus Blast respectively. While you are faster Tyranitar is able to hold a Chople Berry, making it a fair check against you. Mega-Mawile cannot be OHKOed by Focus Blast and it will retaliate with Play Rough. As you might have guessed, Focus Blast has a rather questionable value. Feel free to repalce it with something like Taunt in order to prevent Xerneas to set up on you.
Aegislash @ Life Orb
Ability: Stance Change
Level: 50
EVs: 252 Atk / 252 SAtk / 4 SDef
Brave Nature
- Shadow Ball
- Iron Head
- Shadow Sneak
- King's Shield
Aegislash can fulfill two very important roles in a team. It is both a counter to the a regular special attaking Xerneas and a check to all the Mewtwos. First of all, Iron Head + Shadow Sneak kill any Xerneas without a Babiri Berry that is not some weird stuff like 252/+252 (in which case it does not have enough offensive presence in order to object your Iron Head/King's Shield/Iron Head). Shadow Ball and Shadow Sneak together will KO any Mewtwo, Y-Calm Mind and X-Bulk Up alike. Both of them fail to KO you on the first turn with Fire Blast and Earthquake respectively.
This Aegislash will lose to Mega-Kangaskhan, no exceptions (even with crit). Two Sucker Punches or Earthquakes are enough in order to take it down. Luckily, none of her primary moves are effective against it, so it is possible to bring in something flying. Regular Gengar is a full counter to Kanga when it does not have coverage, although stacking Dark weaknesses is not very advisable with Yveltal running around. Speaking of Yveltal, its Dark Aura Dark Pulse (duh) smashes right through your Shield Form and no amount of HP will alleviate that, even when coming from an Assault Vest one.
Xerneas @ Babiri Berry
Ability: Fairy Aura
Level: 50
EVs: 12 HP / 252 Atk / 244 SAtk
Naughty Nature
- Moonblast
- Nature Power
- Megahorn
- Rock Slide / Close Combat
Aegislash is a counter? Usually yes, but in this format specifically Xerneas has access to Earthquake. Nature Power is the key move, the only move that allows you to hit Aegislash super effectively. 12 HP in combination with a Babiri Berry allows you to always survive a Brave 252 LO Iron Head followed by Shadow Sneak unless the opponent maganes to hit you critically. Naive 124 Atk Earthquake always 2HKOs a 252 HP Aegislash in Shield Form after one turn LO recoild. but in order to beat the Leftovers one you need to run max Atk. There is a small chance that you will lose because the minimum damage roll is 180 (with two turns of Leftovers Aegislash will have 188). However, you will definitely lose Weakness Policy Aegislash. Megahorn allows you to shoot Mewtwo-Y down when it tries to setup on you. The last move is just a filler. Close Combat ensures a bit burst damage on Kangaskhan before you inevitable will go down. An alternative to the Babiri Berry is a Life Orb, which ensures that you will always OHKO Mega-Kangaskhan but you will lose to Aegislash, which is not desirable.
As said, Mega-Kangaskhan beats this set despite losing to Geomancy. LO-Gengar and Mega-Gengar have their field day with this one. Xerneas is completely walled by Mega-Venusar, should you ever see one despite the influx of Mewtwos. When you decide to go with Close Combat, Talonflame will beat you 1on1; same goes for Charizard-Y, but it isn't very good in this enviroment.
