Folks are going to be building around Fraying Omnipotence long after Core Set 2019 rotates from Standard
Either will work out just fine and the cost difference is negligible
- Unlimited copies allowed
As I mentioned before, things are more complicated than this when you consider cantrips, card advantage, and such, but this should give you a good start for making sure you have the right number of lands in your deck
Paste a Moxfield or Archidekt link and see every Game Changer flagged
And, as Engelhard puts it: "Some franchises have plenty of interesting generic concepts that players know, many don't, and TMNT is one of them." So far, one of Wizards' tactics for reducing the number of legendary cards in UB sets which don't have extensive fantasy worlds like Avatar' and Lord of the Rings' is to give generic names to named side characters