one piece card game event OP-16 Release | Ended]Store Tournament Vol. 5 −

(6/6/2025) Edgar must be under your control in order to start casting an artifact spell using its first ability, but it doesn't need to stay under your control throughout that process or be under your control as the spell resolves

While this cost reduction comes at the cost of reducing the power and toughness of each of your creatures by -1/-1, the inherently sizable nature of Demons causes this drawback to be rather negligible for Demon-tribal decks

You can also exchange Crystals for additional coins in the shop, though Crystals are much harder to collect so you might want to avoid doing this

This includes in-depth on game mechanics and the phases of a turn in the One Piece Card Game