I think I now understand Cohen

[Schmoe]

Cohen said:
Air Queens has usually at least 9 Mirror Images, so on 1 banefire out of 9 will hit the target.

You should need Incinerate, or Soul Slay, or however 100% precision spells that target a single person, not an area even of 1.

Then might I suggest said Black Sorcerers (or normal Sorcerers) with a Skull Staff, Spell Focus Amulet, and scripted to cast Disintegrate?

Incinerate is conceivable, too, for a Black Sorcerer with a Skull of Fire or a random in fire, or even casting Phoenix Power.