I never know how this is. And when I get it, I forget with time
New Yveltal-GX from Forbidden Light-new set coming have it.
Dark energy. Absorb Vitality attack: 20 damage. and Heal from this Pokémon the same amount of damage you did to your opponent's Active Pokémon.
So Yveltal-GX is active on first attack, hit 20 and is not damage so heals 0 because nothing to heal.
Second attack, Yveltal hit 20 more, then Heal 20? or he Heal 40, being the total of damage on opponet's pokémon?
And if Heal 20 always, why not write Heal 20 to this Pokémon?
Is this because if Yveltal-GX have Choice Band and hits 50 to an opponent's EX or GX, Heal also 50?