This mana can't be spent to cast a nonartifact spell." (9/9/2022) You can use the added by a Powerstone token on anything that isn't a nonartifact spell
You can then tap it and remove it the counter on it to add the exact amount of mana you spent to attach the counter and card in the first place, and then that mana can only be used to cast the card attached to Ice Cauldron
Uril, the Miststalker This is a rough piece to deal with, not because it's in Aura loving which is card disadvantage, but the hexproof that prevents any interaction
Ghalta and Mavren is easily one of the biggest vampire cards you'll ever see, and the growing number of vampire tokens becomes immense fast
Since then, however, the product has actually launched, and prices have crashed significantly
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