op9 one piece booster box Amazon.com: BANDAI Emperors in The New World OP-09 - Card Game Each box contains 24 booster packs with 6 random cards. OP-09 The New Emperor -

Reaper King

Cards like The Deck of Many Things draw upon the larger lore of the franchise, while also throwing some randomness into the game

And then add in cards to make everyone take damage, like Geier Reach Sanitarium and Mikokoro, Center of the Sea

Whether in reverence or agony, all the world will kneel. Ayli, high priest of the Eternal Pilgrims Illustrated by Lake Hurwitz Standard Not Legal Alchemy Not Legal Pioneer Legal Historic Not Legal Modern Legal Brawl Not Legal Legacy Legal Comp

It has a CMC of 6 so they keep revealing cards

In extreme cases, Walls of Ba Sing Se will do a similar thing, which can come up if you play Faithbound Judge in a Defender deck