As has been said, this card isn't particularly devestating against rush decks. It does, however, absolutely wreck stall decks. It will almost certainly be part of the standard rainbow or eternity rewind lock decks against some FGs. It will be a fantastic addition to control decks as well; MrSexington's rage quit deck (with eternity and photon for rewind) has very long matches against FGs because they end up with a full hand, discarding and drawing 1 per turn. The biggest problem that I can see with the card is the same as for other creatures; once you have one out, all the others in your deck are basically pointless. At most, you would need 3 of these out at any one time.
I wonder if it could be slotted into a devourer/vampire fractal aether/rainbow. Probably too heavy on cards and not much use for the extra elements.