Old timers may remember that I have a bit of experience in the Grave vs Zane mu.
The early game is rough for Grave. Zane is like a grappler that does damage, has some fast attacks, and card neutral dodges. Grave will usually have to lay down some pretty uncomfortable normal attacks in order to survive.
Grave T is better used for dealing with Crashbombs than for stopping C&D. T is also more unreliable because Grave K is actually a really good card in the mu. Martial Mastery is pretty handy for checking if MA is real and losing his fastest throw doesn’t hurt so much because of grappler.
I think how the mu goes is bad for Grave in the early game then pretty even in the mid game then a stand off between TPoS and MA in the late game which favors Zane because his ultra and throws are faster.
I thought I had more interesting things to say but the memory is a little fuzzy. It’s been awhile. I think Legion covered it pretty well, it seems like Grave should win it but Zane’s options are strong and his early game is really solid. Grave can just die before he even gets going. I’d probably but it closer to 5.5 Zane advantaged though.