one piece booster box how many packs OP14 The Azure Sea's Seven Japanese – Features reprints of popular cards from OP01 to OP06 and event One Piece TCG OP-14 The

For 5 mana, you can sack as many lands as you want to dig for artifacts and more lands

These force your opponent to discard a card from their hand, and while this might not appear all that powerful at first glance, repeatedly forcing your opponent to discard cards or being able to choose a specific card from your opponent's makes discard effects worthwhile

Whenever you get any one of these eight new cards or four non-foil Commander cards in your Set Booster, you will have gotten at least two rares in that booster

As Dragons tend to have high power, this can provide massive amounts of mana which can then be used to cast even more Dragons