op-9 booster box One Piece OP-09 Emperors in the New World offering players new strategic possibilities Bandai One Piece Card Game

When all seven Emeralds are gathered, their power is amplified immeasurably

The trade-off: the total card pool is smaller (71 main + 22 secrets = 93 cards vs

Monster Effect You can only use the 1st and 2nd effect of this cards each once per turn

Secret Lairs have been Wizards way of providing limited-run collectible cards at a premium price while also inviting a bevy of artists whose style might fall outside the regular purview of core MTG cards

And if that's not insane enough, some Dark World Monsters have effects that activate if your opponent causes them to be discarded, thus essentially punishing them for making you lose cards in your hand