[@KoL]
I'm fine if you want to start laying debuffs, though I am hesitant to say it would reach the decks of the Elicitor so only the fortress itself and the Demons are going  to be affected unless the Machina and Angels decide to abandon the high ground and attack in the poison fields. The vampire isn't going to make many friends if the demon army breaks upon her ramparts, but she is a solitary, noble sort for a reason.

As for her forte, honestly she'd  have been suited just as well to defending or trapping ground in a retreat, something I predict she will have ample opportunity for in the future.