Jean, gare à toi ! (Gengar-Mega) @ Focus Sash  
Ability: Magic Guard  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Secret Sword  
- Judgment  
- Shell Smash  
- Spore  
- Sludge Wave  
- Bug Buzz  

Mewtwo-Mega-X @ Focus Sash  
Ability: Magic Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Shell Smash  
- Photon Geyser  
- High Jump Kick  
- Ice Shard  
- Too many things once again  

Slaking @ Leppa Berry/Silk Scarf  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Fake Out  
- Extreme Speed  
- Sunsteel Strike  
- Extreme Evoboost  
- Shell Smash  

Diancie-Mega @ Pixie Plate/Focus Sash  
Ability: Pixilate  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
- Fake Out  
- Extreme Speed  
- Boomburst  
- Spikes  
- Shell Smash  
- Sunsteel Strike  
- Moongeist Beam  

Kartana @ Fire Memory/Focus Sash/Leppa Berry  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Adamant Nature  
- Sunsteel Strike  
- Ice Shard  
- Searing Sunraze Smash  
- Multi-Attack  
- Leaf Blade  
- Shell Smash  
- Horn Leech  

Necrozma-Dawn-Wings @ Lunalium Z/Spooky Plate  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Lonely Nature  
- Shell Smash  
- Moongeist Beam  
- Photon Geyser  
- Bug Buzz  
- Sludge Wave  
- Judgment  
- Earth Power  
- Shell Smash  
- Photon Geyser  
- Judgment  
- Power Trip  
- Searing Shot  
- Dark Pulse  
- Shell Smash  
- Sunsteel Strike  
- Multi-Attack  
- Strength Sap  
- Attack Order  

Houndoom-Mega @ Earth Plate  
Ability: Wonder Guard  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
- Shell Smash  
- Photon Geyser  
- Judgment  
- Revelation Dance  

Yveltal @ Icicle Plate  
Ability: Wonder Guard  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
- Shell Smash  
- Photon Geyser  
- Revelation Dance  
- Judgment  
- Power Trip  

Gyarados-Mega @ Fairy Memory  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Power Trip  
- Shell Smash  
- Multi-Attack  
- Photon Geyser  
- Sunsteel Strike  

Klyog tout shiney (Kyogre-Primal) @ Zap Plate  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Rash Nature  
- Steam Eruption  
- Judgment  
- Sunsteel Strike  
- Shell Smash  
- Water Shuriken  

Arceus @ Fist Plate  
Ability: Wonder Guard  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Judgment  
- Shell Smash  
- Moongeist Beam  
- Taunt  
- Boomburst  

Mewtwo-Mega-Y @ Scope Lens  
Ability: Sniper  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Adamant Nature  
- Focus Energy  
- Photon Geyser  
- Bug Buzz  
- Earth Power  

Groudon-Primal @ Lum Berry  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Shell Smash  
- Sunsteel Strike  
- Ice Shard  
- Thousand Arrows  

Groudon-Primal @ Lum Berry  
Ability: Mold Breaker  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naughty Nature  
- Thousand Arrows  
- Ice Beam  
- Shell Smash  
- Spore  

Groudon-Primal @ Life Orb  
Ability: Magic Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 Spe  
Naughty Nature  
- Sunsteel Strike  
- Freeze-Dry  
- Mind Blown  
- Shell Smash  

And A LOT of others