Meditite

โยนเหรียญ — ถ้าออกหัว: prevent all effects of an attack, including damage, done to Meditite during your opponent's next turn Flip a coin. If heads, prevent all effects of an attack, including damage, done to Meditite during your opponent's next turn.

Does 10 damage plus 10 more damage for each damage counter on the Defending Pokémon.