The other fun thing about this card is that crowd control effects currently used in game (Basilisk's Blood and Rewind) are just as equally detrimental to use on a Voodoo Doll compared to direct damage spells (Rain of Fire, Lightning, Shockwave, etc.). Rewind can allow the player to play the doll again and deal potentially more damage if it wasn't killed the previous round, while Basilisk's Blood improves the amount of damage it can take (and thus, be devastating in a Basilisk's Blood + TU + Cremation combo).
I really, REALLY like this card now.
assassim's version didn't quite sit so well with me, since it affected creatures, but affecting the opponent directly is quite a fun twist, and I can't wait to see it implemented.