Calyrex-Shadow @ Choice Scarf Ability: As One (Spectrier) Tera Type: Ghost Timid Nature EVs: 252 SpA / 4 SpD / 252 Spe IVs: 0 Atk - Astral Barrage - Encore - Grass Knot - Trick
Arceus @ Heavy-Duty Boots Ability: Multitype Tera Type: Fire Adamant Nature EVs: 252 HP / 164 Atk / 76 SpD / 16 Spe - Bulk Up - Extreme Speed - Recover - Shadow Claw
Eternatus @ Heavy-Duty Boots Ability: Pressure Tera Type: Fairy Calm Nature EVs: 228 HP / 32 Def / 188 SpD / 60 Spe IVs: 0 Atk - Flamethrower - Recover - Sludge Bomb - Toxic Spikes
Ho-Oh @ Heavy-Duty Boots Ability: Regenerator Tera Type: Fairy Impish Nature EVs: 248 HP / 252 Def / 8 SpD - Brave Bird - Recover - Sacred Fire - Whirlwind
Koraidon @ Loaded Dice Ability: Orichalcum Pulse Tera Type: Dragon Jolly Nature EVs: 252 Atk / 4 SpD / 252 Spe - Flare Blitz - Low Kick - Scale Shot - Swords Dance
Ting-Lu @ Leftovers Ability: Vessel of Ruin Tera Type: Grass Careful Nature EVs: 252 HP / 4 Def / 252 SpD - Earthquake - Ruination - Spikes - Whirlwind
Sample team from Smogon sample teams