Weezing (UNB 74)
Ability
Detention Gas
As long as this Pokémon is your Active Pokémon, put 1 damage counter on each of your opponent's Basic Pokémon between turns.
Splattering Sludge
40
This attack does 20 damage to each of your opponent's Benched Pokémon that has any damage counters on it. (Don't apply Weakness and Resistance for Benched Pokémon.)
weakness: x2
resistance: none
retreat cost: 3