The Jeskai mode is capped at one card per turn (sans double strike or extra combats), but 3 mana for an extra card every turn is solid
Like many black kill spells, this spell can't target black creatures
(2021-03-19) You can exile cards to pay only for generic mana, and you cant exile more cards than the generic mana requirement of a spell with delve
Codespell Cleric This sucks
If you're familiar with the stats and attack powers on TCGs beyond Magic, Pokmon, and even 99.99% of Yu-Gi-Oh
I agree that CCGs have a fundamentally different model, but in the standard CCG model, yes, there are ultra-rare cards, but most anyone who is a serious player will be buying enough copies to end up with one or more of them, and no one card should be significantly better than the others