Ability costs can include ink (paid by exerting cards in your inkwell), exerted cards (paid by, well, exerting cards) or something else explained on the card itself
This mechanic interestingly enough was the original one I designed for Odyssey' s Mirari before the rules team told me that it would never work
Kefka Palazzo is a real fan-favorite among Final Fantasys extensive cast of villains, known for his off-the-wall personality and his world-ending power
The internet, in typical "being terrible" fashion, seems to take umbrage with it
Watermark: Witherbloom Illustrated by Craig J Spearing Standard Legal Alchemy Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
It's also one of the best cards for Type Four with infinite mana but just one spell per turn where the mana cost on this won't matter you can always cast it when needed