Zygarde-Complete @ Safety Goggles / Leftovers
Ability: Prankster
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD
Relaxed Nature
IVs: 0 Spe
- Thousand Waves
- Core Enforcer
- Shore Up
- Haze
Prankster Zygarde-Complete finds it's place on the team bc you told me to.
Haze for removing stat boosts and Shore Up for priority recovery. Haze is used over Topsy-Turvy because it can deal with things such as Simple Smash Tyranitar-Mega which, especially without Scarf Imposter, can be an issue. Core Enforcer helps to deal with various PH mons such as Giratina and Regigigas while Thousand Waves can trap (some of) them so they cannot switch to avoid the poison damage. Waves can also trap imposter which can then be PP stalled (make sure to stay at high health because Core Enforcer does almost 40%). Thousand Waves is chosen over Anchor Shot despite the lower PP and not hitting flying types because of the extra power due to STAB and higher base power as well as hitting most Steel types super effectively.
Leftovers can be used for passive healing and to switch into Choice Band Steelworker Kartana better but Goggles seemed to be useful in testing.
Yveltal @ Safety Goggles
Ability: Unaware
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 50 Spe
Sassy Nature
- Revelation Dance
- Spectral Thief
- Anchor Shot
- Shore Up
Also here because you told me to.
Revelation Dance to kill Normalise Gengar-Mega and for a solid STAB move with decent PP that threatens Aegislash, MMY and Giratina. Spectral for boost stealing. Anchor Shot is once again to trap Imposter and in a pinch does reasonable damage against Audino-Mega and Tyranitar-Mega which resist/are immune to the other moves.
+SpDef Nature to better answer Mega Gengar as well as things like MMY which may do significant damage with coverage.
Speed is to outspeed everything offensive (up to Pheromosa) after stealing a Shell Smash boost with Spectral Thief.
Registeel @ Leftovers
Ability: Magic Bounce
Level: 99
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD
Sassy Nature
IVs: 0 Spe
- Slack Off
- U-turn
- Poison Fang
- Core Enforcer / Entrainment
Since so far we've been stacking Fairy and Ice weaknesses I added the ubiquitous Registeel with Magic Bounce to help with hazard control since Yveltal does not like Stealth Rock and Toxic Spikes can be deadly if not prepared for.
U-turn is basically mandatory since the first two mons forewent pivoting moves with Lv99 to underspeed opposing Registeel and Audino-Mega to compensate somewhat for the lack of momentum so far. Poison Fang is good for spreading poison, even to Magic Bounce users and Core Enforcer is used to check PH Regigigas. I used Core Enforcer in testing but Entrainment has more PP and can deal with PH Xerneas somewhat which the team otherwise struggles against as well as some uncommon PH Regigigas sets such as Dragon Tail.
Leftovers ensures you avoid the 2hko from Specs Rayquaza-Mega using Boomburst and also lets you avoid wasting Slack Off PP in long matches as well as compensating for the slight loss in bulk from the dropped level. Rocky Helmet is worth considering if you want to change something to punish U-turns more.
Dialga @ Steelium Z
Ability: Fur Coat
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD
Quiet Nature
IVs: 0 Spe
- Tail Glow
- Doom Desire
- Dragon Tail / Whirlwind
- Shore Up
Since I had decided to go for a Bulky Offense/Semi Stall team rather than full stall I needed an offensive mon. Dialga is used over other more powerful/quicker threats due to the defensive utility it provides with Fur Coat allowing it to check Ground coverage or V-create Rayquaza as well as making it easier to stay in long enough for Doom Desire to hit. Tail Glow and Doom Desire are the main ways of dealing damage with Dragon Tail or Whirlwind to force out their check and hopefully bring in something that dies to Doom Desire. Steelium Z is so you can hit something like Registeel twice in one turn alongside Doom Desire which makes it much easier to break through bulky things. Dragon Tail does some reasonable damage and lets you stay in against things you think will stat boost and forces out things that survive Doom Desire to hit the rest of their team. Whirlwind does let you force out things behind a Substitute and makes you slightly less prone to Imposter haxing you with speed ties and misses.
Minimum speed to make is as likely as possible that you can use Tail Glow on the turn Doom Desire will hit without them stealing the boosts immediately but 252- can be used to make it easier to heal up on things like Giratina should your health drop too low.
Kyogre-Primal @ Toxic Orb
Ability: Poison Heal
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe
Modest / Calm Nature
IVs: 0 Atk
- Scald
- Quiver Dance
- Ice Beam / Moonblast
- Spikes / Stealth Rock
Poison Heal Kyogre-Primal is used as another sweeper, however since this one boosts speed it can be more useful for seizing an opportunity to finish off a weakened team.
Scald is used to spread burn and for it's good PP, Moonblast for coverage but Ice Beam can be used to deal with Mega Rayquaza and Groudon-Primal more effectively but you then struggle with the occasional Gyarados-Mega. If running Moonblast use Calm nature to deal with Imposter a bit better although thanks to not running Spore it is still an issue.
Spikes is used to punish passive checks such as RegenVest Pogre and makes the Shedinja matchup actually winnable as well as working nicely with Dialga's P-Hazing. Be careful with this mon if Imposter is still in the running because it can set Spikes or even beat you if running Moonblast. This mon can threaten almost every Magic Bounce user in some way or other, even if it is just stalling out recovery PP with burns and Scald as well as being durable so it makes a nice hazard setter.
This also provides another soft check to Triage Ray and Precipice Blades Diancie which can be nice in a tough spot.
Aegislash @ Safety Goggles
Ability: Flash Fire
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD
Sassy Nature
IVs: 0 Spe
- Spectral Thief / Poison Fang
- Topsy-Turvy
- Roost
- Defog
The team was still a little weak to Contrary and Fire Coverage -ates and a switchin for Shedinja was needed so Aegislash found it's place on the team. Spectral Thief is better against setup users and threatens Mewtwos with noticeable damage but Poison Fang lets you actually force out Shedinja. Topsy-Turvy so you have something to do against Contrary and Defog because it wasn't on the other 5 mons.
This can also switch into most No Guard sets without risking much which saves some stress on low/mid ladder.
I've tested a little (50 games) on ladder and brought it one match for BH Open and it seems reasonable. I might update with some tweaks if I have time to test it properly. Can struggle against Imposter on teams with strong wall breakers but so far it has been manageable.