Card is busted with Tortured Existence. You get an instant-speed Plague Wind every turn that even affects like things like Eldrazi and Blightsteel Colossus. It also doesn't cost you any cards, just mana. I'm betting that you haven't seen that combo in action yet :P.
Worth noting that Deed is "hittable" with Commune with the Gods and that Fleshbag Marauder + Tortured Existence is a soft-lock for creature-based strategies. That being said I dislike Deed in TE decks since I'd rather keep my TE than blow up the board.