2v2 electric terrain+trick room

Tapu Koko @ Electrium Z
Ability: Electric Surge
EVs: 4 Atk / 252 SpA / 252 Spe
Naive Nature
IVs: 1 Atk
- Thunderbolt
- Dazzling Gleam
- Grass Knot
- Hidden Power [Ice]

Raichu-Alola @ Focus Sash
Ability: Surge Surfer
EVs: 4 Atk / 252 SpA / 252 Spe
Hasty Nature
- Fake Out
- Psychic
- Grass Knot
- Thunderbolt

Cofagrigus @ Ghostium Z
Ability: Mummy
EVs: 248 HP / 252 SpA / 8 SpD
Quiet Nature
IVs: 0 Atk
- Trick Room
- Shadow Ball
- Nasty Plot
- Hidden Power [Fighting]

Hariyama @ Flame Orb
Ability: Guts
EVs: 252 HP / 252 Atk / 4 SpD
Brave Nature
IVs: 0 Spe
- Fake Out
- Close Combat
- Facade
- Knock Off