Marcy: This does certainly have 'win-more' potential and issues, and also costs 5 mana, which means that in a format like Standard, that's a point of the game where you should probably just be winning, but if there were some way to get this down earlier or cheated out, could be good
While casting spells without spending mana is great, Nashi can burn you out really fast
If your playgroup loves Sol Ring, Swords to Plowshares, Path to Exile and the like, this might still be up your street
One of the best payoffs for the brown decks in Cube, Urza is an incredible reason to draft artifacts in Cube
As a result, there are extreme spoilers ahead
Flicker effects are one of the most efficient ways to trigger Ketramose, which makes it a natural inclusion in any Orzhov+ (+) blink shell