Use template numbers as a seatbelt, not a religion
From purely an aesthetic perspective, the artistry and design on display in the Final Fantasy set are top quality, especially when looking at the Through The Ages reprints of classic Magic: The Gathering cards that feature art from longtime series mainstays like Yoshitaka Amano or Tetsuya Nomura
For example, Brainstorm could be nerfed and brought back into Historic, but Brainstorm is such an iconic card that the developers wouldn't want to alter it
Many players want to make something unique with this card, and despite each build having roughly 25 cards in common, theyve succeeded
Theres a funny card, Viashimo Heretic which basically deals damage equal to the total costing cast of an artifact which you can destroy too
Pack in some lessons if you really want to maximize it