So I was using Galilea, teamed up with kaedex00 using Ambra, on Advanced Algorithm.
Shortly after the fight with Geoff, it was clear that Ambra was not dying to anything. It was the return of an old bug I remember from beta, where healing, shield, or overshield regeneration seems to get stuck at some high value, leading to immortality. If I had to guess, I think it was caused when Ambra died quickly after getting her overshield, then was instantly revived by gaining a level, all during a hiccup of server lag.
So it was Ambra on point from then on out, standing in the middle of combat without a care in the world. ISIC died to Scorching Strikes. It was quite a show. To the plaudits of the troops and the amusement of the children, I present a couple of screenshot snippets:
Ambra, the bullet sponge:
Ambra and ISIC, dramatic aerial battle:
