[Taqwus]

Vampires are fire-vulnerable, actually. But that's not the reason I mentioned them -- it's because they're immortal mages with the requisite magic for Sabbath (there aren't any multisummonable immortals that have any chance for Astral, if memory serves).

Immortal, exploding, flying Sabbath circus might be an entertaining if perhaps non-optimal tactic if used within their own dominion. Need the 1F on the master to cast Phoenix Pyre, and that's not stock so either needs to be VQ or empowered, but *shrug*.