Krookodileワルビアル

AbilityBlack Eyes

Once during your turn (before your attack), if this Pokémon is your Active Pokémon, you may flip a coin. If heads, discard an Energy attached to your opponent's Active Pokémon.

Flip a coin. If heads, this attack does 20 more damage. If tails, this Pokémon does 20 damage to itself.