I would watch out for whiffing any long recovering normals mid screen, such as far.5S and 2HS, and whiffing 2P and 2S in close range because of Testament's 2HS invulnerability. Just try not to mess with it really.
As far as forward EXE beast goes you got 2 options, 214.D Force Break, which will go over it, and you can also just go ahead and jump over it if you expect it coming, and just head on over to Testament to give him a nice how-dee-do.
Rear EXE beast, if testament is close he's going to try to push you into his over head, so make sure to watch out and block it high. If he's full screen away, just block/jump over it.
You don't want to get stuck guarding mixup after being hit by skull. So if you're not expecting a setup, go ahead and block the skull to get it over with!
Take out the nets as Testament places them with j.HS and j.S, and sometimes back.
Don't get stuck up in the air bouncing, getting hit by net after net. You'll eventually eat a skull.
This generally works for me, but ofcourse like usual, my strat could have flaws.