AC+ Mission Help

[Nyonics]

I'm trying to get GGXX rank on every mission. I only have 12 (vs Testament normals only; you're marked the entire time) and 16 (vs poisoned Gold May, begin with half health & life regen) left.

I'd like any and all suggestions for cheap ways to accomplish this.

12 I am at a complete loss as for how to complete (even though I main Testament).

16 I have gotten really really close but as far as I can tell to get a GGXX rank you are required to end the fight with full health. If I fight as hard as I can fro the outset I kill May way too quickly for this to happen, but I've yet to be able to buy myself enough time to regen health with spamming Zeinests and untechable moves. I almost made it a couple of times but I'm really frustrated because I generally kill her much too fast to get all my health back. I have also been trying Chipp for a little bit playing triple jump evades and air dashes and a Gamma Blade when I can get one it--he seems to regen his health faster (is it a function of Guts?) but if I ever do get hit--and inevitably I will, he loses more than what he's regained too fast.

Any characters I should think about trying? What tactics or ideas will be best?

I appreciate it greatly.

EDIT: turns out if you play Jam and pray for a situation where you can use the 2HS 6HS6HS loop mission 12 isn't totally impossible to get GGXX rank on. Still grateful for any advice on beating Gold May slow enough. It takes longer to regen my health bar than it does for poison to deplete hers and not being able to block is just...

RE-EDIT: apparently Potato is the most appropriate to use against May. 236S with good timing until your health is full and then pray she doesn't hit you until you can do something like a hammerfall. I barely managed to do it.

Which means that either mods can delete this thread or leave it if they think anyone else can benefit from what I wrote here. In other news these were the only missions that GGXX rank gave me serious trouble for, so if anyone wants a cheap way to do any others PM me or respond here if it's still open.

[Potemtager]

I've done this. I main Potemkin so all I had to do was Megafist I into Potemkin Buster.Then repeat. It's gonna take a few tries but it's a fast way to do alot of damage while the com is on the defensive. hope that helps.