It seems that it is also one of the reasons for the ban
Recent Transaction History Card Information Collect with Confidence: The SNKRDUNK Guarantee At SNKRDUNK, we dont just facilitate trades
Whatever is coming on the other side of an Act card is going to affect the board state and it is good to be in a position where you can handle that change in advantage, be it for or against you, when it comes
Sure, children going into the store will be happy to spend their pocket change for a chance at a Charizard V, but selling cards at scale requires a lot of knowledge and ability to pivot
Cards that untap our lands in mana-efficient way are also huge for us since we do everything at instant speed
At worst, you're getting a zombie that fuels its upkeep trigger, but more realistically you'll be animating small creatures with ETB effects like Eternal Witness, big game-enders for a mana discount like Sheoldred, Whispering One, or anything in between