Most creatures are useless on turn 1... you know, unless they have haste? It's more along the lines of Carnophage, Sarcomancy and Gravecrawler. If mono-black Eldrazi has an aggro build in standard, this will be in it.
I mean, you'll surely lose a life next turn because you can't play a second creature on turn 1. It's OK if you can play two of them at turn 2 though, but I'm not sure how the curve will play out. Maybe the life loss won't matter, but it can add up after a while if an opponent plays it smart.