
If Cacnea has any Darkness Energy attached to it, this attack does 10 damage plus 10 more damage.
Flip 2 coins. For each heads, choose 1 of your opponent's Pokemon and this attack does 10 damage to that Pokemon. (Don't apply Weakness and Resistance for Benched Pokemon.) (You can choose the same Pokemon more than once, but you can't do more than 10 damage to that Pokemon in this way.)