The fact that The Final Days doesnt actually affect the battlefield the turn you play it likely holds it back
Judy Hopps, Optimistic Officer, and Pawpsicle are a solid combo
Pokmon, Magic: The Gathering, Yu-Gi-Oh!, Digimon Card Game, Dragon Ball Super, OnePiece, and much more
People use proxies for a bunch of extremely normal reasons: - Playtesting new decks before spending money - Commander upgrades without chasing down every last staple immediately - Cube maintenance (updating lists without re-buying a small nations GDP) - Kitchen table games where the goal is fun, not authentication theater - Protecting valuable cards by keeping originals safe while you play with substitutes If your group is on board, proxies are often the simplest way to keep games creative, fair, and actually happening
Being able to destroy a powerful artifact for just 1 mana is a really good deal, and the ability to create some tokens by sacrificing one of your own is a nice flexible touch
Y'shtola has a few things going on mechanically, and they all combine to make her a powerful Commander