Kingdra

Stage 2 – Evolves from Seadra

Once during your turn (before your attack), you may put 1 damage counter on 1 of your opponent's Pokémon. This power can't be used if Kingdra is affected by a Special Condition.

Dragon Steam

If your opponent has any Fire Pokémon in play, this attack's base damage is 20 instead of 60.