Blood and the promise

At the beginning of your upkeep, look at the top
card of your library if it's a non-creature card put
that card into your graveyard. You gain life equal
to its mana value.
{t}:Return target creature card from your
graveyard to the battlefield tapped. That creature
deals damage equal to its power to its controller.
That creature dosen't untap during your untap
step.