Gren happy

Greninja @ Normalium Z
Ability: Protean
EVs: 4 Atk / 252 SpA / 252 Spe
Naive Nature
IVs: 30 Atk
- Happy Hour
- Hidden Power [Fire]
- Ice Beam
- Gunk Shot

Sableye-Mega @ Sablenite
Ability: Prankster
EVs: 252 HP / 112 Def / 144 SpD
Careful Nature
- Foul Play
- Knock Off
- Will-O-Wisp
- Recover

Tangrowth @ Assault Vest
Ability: Regenerator
EVs: 252 HP / 4 Def / 252 SpD
Sassy Nature
- Earthquake
- Knock Off
- Giga Drain
- Hidden Power [Ice]

Landorus-Therian @ Rocky Helmet
Ability: Intimidate
EVs: 76 HP / 112 Atk / 184 Def / 136 Spe
Impish Nature
- Earthquake
- Stone Edge
- U-turn
- Rock Polish

Klefki @ Light Clay
Ability: Prankster
EVs: 252 HP / 4 Atk / 252 Def
Impish Nature
- Play Rough
- Spikes
- Thunder Wave
- Reflect

Tapu Koko @ Expert Belt
Ability: Electric Surge
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Taunt
- Hidden Power [Ice]
- Thunderbolt
- U-turn