Pokémon Trading Card Game - Victreebel - EX: FireRed & LeafGreen 17

Poké-Body: Acid Sampler
As long as Victreebel is your Active Pokémon, put 1 damage counter on each Defending Pokémon between turns. Acid Sampler stops working if your other Active Pokémon is not a Victreebel.

Acid 50
The Defending Pokémon can't retreat until the end of your opponent's next turn.