MLP-MTG: Mare-Do-Well

6/4 first strike seems WAAAAAAAAAY too good. If they don't have removal to it, then they're in trouble because 6/4 first strike makes it hard to block until they start playing 6 and 7 drops, and it's not a good thing when a 3 drop needs creatures twice it's cost to fight it. (Tarmogoyf was a mistake, BTW, and Knight of the Reliquary needs the proper support to be insane, and if you have no idea what I'm bringing up, don't worry about it) This is the type of card that it really seems like you need to play test a lot to get all the numbers right, so I can't expect your stats to be balanced, as well as my input to be accurate, so if you really care about the card, I would recommend experimenting to find what's the sweet spot.

Ultimately, it just feels like black skinshifter, down to having a defender mode, a flying mode, and a rape the opponent mode. It leaves a bad taste in my mouth, but that's just me.