2
Vega
Dark
Dusk Badge
Battle Gimmick
Damage Over Time — all non-Dark Pokémon take residual damage each turn
Gym Team
Liepard
Honchkrow
Spiritomb
Pawniard
Mega Absol
MEGA
Strategy Tips
Fighting types are your best bet. The residual damage means you want to end battles quickly rather than stall. Fairy types also work well. Watch out for Mega Absol's Magic Bounce reflecting status moves.
Super Effective Types
Fighting
Bug
Fairy
