This is something that I've been experimenting with recently could use some feedback.
The lead
Tapu Lele @ Psychic Seed
Ability: Psychic Surge
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Draining Kiss
- Aromatherapy
- Extrasensory
- Substitute
Hazard Setter
Mew @ Twisted Spoon
Ability: Synchronize
EVs: 252 HP / 4 SpA / 252 SpD
Calm Nature
IVs: 0 Atk
- Toxic Spikes
- Whirlwind
- Roost
- Expanding Force
Pivot
Starmie @ Heavy-Duty Boots
Ability: Natural Cure
EVs: 252 HP / 4 SpA / 252 Spe
Timid Nature
- Surf
- Flip Turn
- Rapid Spin
- Recover
Crit Spam
Victini @ Scope Lens
Ability: Victory Star
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Toxic
- Zen Headbutt
- Blaze Kick
- Focus Energy
Drain Stall
Celebi @ Big Root
Ability: Natural Cure
EVs: 252 HP / 220 Def / 36 Spe
Bold Nature
IVs: 0 Atk
- Giga Drain
- Leech Seed
- Calm Mind
- Recover
Rest Talker
Malamar @ Muscle Band
Ability: Contrary
EVs: 248 HP / 252 Atk / 8 SpD
Adamant Nature
- Superpower
- Throat Chop
- Rest
- Sleep Talk
The lead
Tapu Lele @ Psychic Seed
Ability: Psychic Surge
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Draining Kiss
- Aromatherapy
- Extrasensory
- Substitute
Hazard Setter
Mew @ Twisted Spoon
Ability: Synchronize
EVs: 252 HP / 4 SpA / 252 SpD
Calm Nature
IVs: 0 Atk
- Toxic Spikes
- Whirlwind
- Roost
- Expanding Force
Pivot
Starmie @ Heavy-Duty Boots
Ability: Natural Cure
EVs: 252 HP / 4 SpA / 252 Spe
Timid Nature
- Surf
- Flip Turn
- Rapid Spin
- Recover
Crit Spam
Victini @ Scope Lens
Ability: Victory Star
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Toxic
- Zen Headbutt
- Blaze Kick
- Focus Energy
Drain Stall
Celebi @ Big Root
Ability: Natural Cure
EVs: 252 HP / 220 Def / 36 Spe
Bold Nature
IVs: 0 Atk
- Giga Drain
- Leech Seed
- Calm Mind
- Recover
Rest Talker
Malamar @ Muscle Band
Ability: Contrary
EVs: 248 HP / 252 Atk / 8 SpD
Adamant Nature
- Superpower
- Throat Chop
- Rest
- Sleep Talk