My Rating, 4/5 - Against Tokens- and Small-creatures decks awesome, but well 6 Mana are definitely more then Damnation or smth like thats manacost - therefore you have a powerful 6/5 body which is in my eyes a more then nice to have ;)
However what I miss here is a trample or so - that I why my rating isn't max. but well, play it minimum out of flavor reasons my cool Massacre card ;)