op05 japanese booster box One Piece Card Game new era of Awakening One Piece TCG: Awakening of

When the last is removed, they may play it without paying its mana cost

Card Set(s) -Royal Blood- [OP-10] CARD VIEW OP10-062 | R | CHARACTER Violet Attribute Special Block Icon 3 Effect [Blocker] [On K type, add up to 1 purple Event from your trash to your hand

Card Set(s) -Kingdoms of Intrigue- [OP-04] CARD VIEW OP04-044 | SR | CHARACTER Kaido (Parallel) Attribute Strike Block Icon 1 Type The Four Emperors/Animal Kingdom Pirates Effect [On Play] Return up to 1 Character with a cost of 8 or less and up to 1 Character with a cost of 3 or less to the owner's hand

I personally enjoy this in blue-based control and combo decks in Commander