But the thought experiment is much simpler (without loss of accuracy) if we just assume a supercomputer could create The Objective Power Ranking. Yes, Cubes can be other sizes, but for the sake of simplicity we only consider 360
If it is going to be tapped regardless, they might as well
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You do need the 4 mana up front, but because it untaps those lands, you can still do stuff with your mana during that turn
After spending a little too much time opening booster packs and battling friends and randoms, we can say TCG Pocket is as predatory as a Pidgeot stalking a Caterpie and more mesmerising than a Swoobat using Attract
Winning is not the primary goal here, as it's more about showing off something unusual you've made