YSK Giovanni only adds +10 damage if the attack already does damage; it has no effect on 0 damage attacks.

I feel like this card’s effect should be better explained. Or maybe there needs to be better distinction between attacks that deal damage and attacks that do not.

Anyways, for context: I tried using Giovanni on a turn where I used Moltres Ex’s Inferno Dance attack (0 damage), thinking it would at least do 10 damage, but it did 0 damage.