Dawwwwww, she's so cute! I love it! It's one of my dreams to have people make fanart of my characters, so this is fantastic!
Yeah I kinda figured Hall of Mirrors is broken as shit, but I never got a monster which could use it. The playthrough I'm gonna post uses poison alot as well, but with layering Burn on top of it, with Knockers for Burn, Blobber to Tank and buff defenses, and Goblin Witch for Poisoning and Octowizard to stun and tank as well. Melee is generally a bit weak in this game, need to come up with other ways to make them relevant...
I forgot to mention you could also use the formation command to swap monsters too mid battle, and that TP actually acts as a multiplier for damage. If you didn't know that is... Completely slipped my mind...
I think with Asylum Angel you had the mouse cursor on her, so you couldn't move between characters, it kinda locks it in place. It's obnoxious... Nice catch, really need to come up with a solution to it.
Also which difficulty were you playing at? Was it max difficulty, or normal?