Eventide madness

No, not that kind of madness...

I wonder what the avatar will do... "When this creature becomes tapped, you win the game"?
UPDATE: Or maybe, "When this creature is put into a graveyard from play, if it was tapped, you may search your library for a copy of this creature and put it and this creature into play tapped." Confusing and neat.

Black/Green is looking pretty appealing also...