Wayne's World (Ho-Oh) @ Choice Band  
Ability: Regenerator  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Brave Bird  
- Sacred Fire  
- Earthquake  
- Defog

Planet Rock (Marshadow) @ Life Orb  
Ability: Technician  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Close Combat  
- Spectral Thief  
- Shadow Sneak  
- Substitute

Panties Drop (Xerneas) @ Leftovers  
Ability: Fairy Aura  
EVs: 248 HP / 252 Def / 8 SpA  
Bold Nature  
IVs: 0 Atk  
- Moonblast  
- Defog  
- Thunder Wave  
- Aromatherapy

Ménage à Moi (Arceus-Dark) @ Dread Plate  
Ability: Multitype  
EVs: 248 HP / 244 Def / 16 Spe  
Bold Nature  
IVs: 0 Atk  
- Judgment  
- Recover  
- Defog  
- Toxic

"Bitch What's Up?" (Rayquaza-Mega) @ Choice Band  
Ability: Delta Stream  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- V-create  
- Dragon Ascent  
- Outrage  
- Extreme Speed

Big-ass Rocks (Necrozma-Dusk-Mane) @ Solganium Z  
Ability: Prism Armor  
EVs: 252 HP / 252 SpD / 4 Spe  
Careful Nature  
- Sunsteel Strike  
- Swords Dance  
- Stealth Rock  
- Morning Sun

AG BirdSpam

by Unicorn and Pokenerddude, based on a team made by an unknown user (maybe Skarpherim?)

Band Ho-Oh + Band MRay is a really nasty offensive duo capable of breaking nearly every defensive core. SpDef DM acts as the dedicated Xern, Arc-Fairy, and PsySpam switch-in while setting Rock's on a majority of the tier. Arc-Dark can cover nearly all Primal-Groudon and Necrozma's while Defog'ing and checking +1 MRay. Defensive Xern is an odd set that can checks most physical attackers in the format while Defog'ing and healing status off MRay, Ho-Oh, and Arc-Dark. Sub LO Marshadow provides an offensive method of checking MRay, Ekiller, and CM Arc, while checking Smeargle and anti-leading nearly all suicide leads. The triple Defog is fairly necessary to keep Rock's off the field for the birds to thrive. Overall a really strong team capable of blasting the general metagame. Only major weaknesses are to Kyogre (both Primal and Scarf, so keep MRay and Marsh healthy until it's gone), multiple defensive mons with Protect (offensive core relies on breaking and hitting hard, which is difficult to do if the opponent can scout), and Smeargle (because nothing in the game beats it).

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