It feels fair and every deck should be able to defend on that axis, so people shouldnt get sour about it
Overall, the ability to turn an expandable creature into more cards in our hand is what puts these cards on my list
Card not found is a Johnny-favorite that sees pretty frequent play in Standard and with Card not found could actually be somewhat prominent
You should not expect us to do this very often, probably only every couple of years and in very special places
Finally, the level three ability, which costs a further four mana, lets you put a +1/+1 counter on each creature any time you cast a spell
You cant stockpile the decayed zombies the same way Bitterblossom would, but all it takes is a sac outlet to get your moneys worth