Showdown in the Badlands Cards List & Guide
I play marrowgar and while it is good in some matchups it is often countered in practice by a variety of meta decks, and it's nowhere near the strongest winrate card when played or drawn in the deck.
You often have to play it too early with not many corpses because it was a dead card in your hand the whole game and stopped you from developping your board optimally.
And some other matchups it's not even needed to win if you had a strong curve.
Overall a pretty decent card, not worthy of a nerf at all