this could be interesting. i know it makes that creature a big target, but in the right kinds of decks this could be fun. like cast it on am Invisible Stalker, and now each turn you can likely put a new guy into the battlefield. plus if it sticks around for a few turns you have a good chunk of your deck stacked how you want it (assuming you dont have shuffle effects).
all admit is a bit slow, but could be fun in the right tribal deck.