one piece card game paramount war booster TCG: Box [OP-02] The new color Black One Piece TCG: Paramount War

So, if you move or remove the last counter, the planeswalker is effectively destroyed, even though its not technically destroyed by a spellit just dies because it has no loyalty left

Creature removal for green and blue, enchantment removal for black and red, hand disruption for the non-black decks etc

Did you hit an eight-mana threshold

With the loss of power from the cube she has become worse both not being able to recur absurdly powerful cheap cards like Time Walk, Ancestral Recall or Black Lotus and also the lack of prominence from combo decks where she also frequently features

Anyway, one-mana red creatures are good