Its more expensive to find the desired Yu-Gi-Oh pack this way (since duelists will have to keep opening packs until they land the corresponding SR or UR Card), but its helpful if people wish to build a deck around it
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Quite frankly this game feels the most cash grabby of the bunch because this is the only original concept in the bunch, and it sucks because the original idea was Yu-Gi-Oh
Those rule-zero pre-game discussions are more than just power level its agreeing how long you expect the game to go, what levels/types of interaction are enjoyable, etc
Five mana to gain control of so many creatures is an incredible deal, and while you cant use those creatures to go after their former controller, you can certainly make use of them to take out another player
All these cards can be summoned directly from hand if you control no monsters and they all allow to search for a "Kashtira" monster or spell or trap respectively