Xerdon

Xerneas @ Power Herb
Ability: Fairy Aura
Level: 50
EVs: 236 HP / 140 Def / 4 SpA / 100 SpD / 28 Spe
Modest Nature
IVs: 0 Atk
- Moonblast
- Dazzling Gleam
- Geomancy
- Protect

Groudon-Primal @ Red Orb
Ability: Desolate Land
EVs: 12 HP / 244 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Earth Power
- Roar
- Eruption
- Protect

Incineroar @ Incinium Z
Ability: Intimidate
Level: 50
EVs: 236 HP / 124 Atk / 4 Def / 116 SpD / 28 Spe
Adamant Nature
- Fake Out
- U-turn
- Flare Blitz
- Darkest Lariat

Salamence-Mega @ Salamencite
Ability: Aerilate
EVs: 164 Atk / 92 SpA / 252 Spe
Hasty Nature
- Double-Edge
- Hyper Voice
- Tailwind
- Protect

Tapu Fini @ Wiki Berry
Ability: Misty Surge
EVs: 204 HP / 52 Def / 252 SpD
Sassy Nature
IVs: 0 Atk / 0 Spe
- Icy Wind
- Nature's Madness
- Heal Pulse
- Haze

Amoonguss @ Mental Herb
Ability: Regenerator
EVs: 12 HP / 244 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Spore
- Rage Powder
- Grass Knot
- Protect