They also contain a new cycle of cards that are free to cast if you control your commander, some of which became extremely sought after
The typical optimized Belbe deck runs cards like Sanctum of Stone Fangs and Pulse Tracker to ping your opponents before or during combat, before adding six colorless mana during the second main phase and casting anything from Wurmcoil Engine to Portal to Phyrexia
Since the release of Gen 5 sets Black Collection [BW1] and White Collection [BW1] in 2011, Korean sets have been the same as Japanese sets but translated into Korean
The ability to reuse any low CMC permanent opens the way to abuse with cards like Animate Dead, Necromancy, and Dance of the Dead while still letting you reuse Sakura-Tribe Elder and other efficient utility creatures
A few examples are Dragon Whelp, Royal Assassin, and Desert Twister
Who ever loses puts the top four cards of their library into their graveyard