The closest Mox to this is Mox Opal. It is not a mana accelerant, it takes time to get the card online, but in a deck that gets it online, it would be playable.
I don’t see that happening in Vintage anytime soon. There simply isn’t enough playable cards for this to fit into a deck and be good. It’s designed for standard. Play a cheap legend, use this to accelerate a turn to play a bigger legend.
For vintage, a deck would need (1) cheap legendary cards and lots of them (12-16), (2) something larger to accelerate into, and (3) not run null rod.
last edited by gkraigher