Crobat

Ability · Sound Veil

When you play this Pokémon from your hand to evolve 1 of your Pokémon during your turn, you may prevent all effects of your opponent's attacks, including damage, done to this Pokémon until the end of your opponent's next turn.

C · C · C

Your opponent's Active Pokémon is now Poisoned. Put 4 damage counters instead of 1 on that Pokémon between turns.

Weakness: Lightning · Resistance: Fighting · Retreat: 0