Its a nice elf to fit into a +1/+1 counters and proliferate strategy, but unfortunately, the nontoken clause prevents it from being busted in planeswalker or artifact strategies
For example, if Strata Scythe's imprint ability ("When this Equipment enters, search your library for a land card, exile it, then shuffle.") triggers twice (probably because it somehow entered attached to Cloud), up to two total land cards can be exiled
Enjoy this new powerhouse for us all
These would certainly be many years from now, though, when players who own Reserved List cards have left the game in big enough numbers to make a demand for it near-universal.
Zack sacrifices himself to save Cloud, who then picks up the Buster Sword as his own
This sits at around $20 right now, on account of being one of the very best protection spells in the format