one piece tcg carrying on his will booster box ENG - The celebration won’t stop there One Piece TCG | Carrying

It may be the case that there is no showdown

Italian Avidit Un giocatore che pesca per effetto di una carta riceve un danno pari al numero di carte pescate per effetto di quella carta x 500 punti alla fine dell'End Phase del turno

Additionally, there are several other cards that care about the mana cost of something to deal damage - Erratic Explosion, Riddle of Lightning, Explosive Revelation that care for the CMC of the cards

Combined With Mega Lucario Ex, It's Massive Damage Against Opponents Up To 390 Damage In A Single Attack Mega Lucario ex in Mega Evolutions is a Fighting-type, with two moves, "Aura Jab" and "Mega Brave." The former causes 130 damage, which is nothing to laugh at, but the latter ability causes 270 damage and requires only two Energy

Its Strange Wave attack allows the player to attach 3 energy cards to benched Pokmon