[Taqwus]

Request seconded.

In an only slightly related bit of insanity, the vastly inefficient idea of empowering a Blood Slave in magic and getting it Phoenix Pyre occurred to me. Could it be repeatedly sacrificed in the same battle? (Cheapest route would be to empower it in any one path, then give it a Slave Matrix, and let a Master cast Phoenix Pyre I suspect. You'll also want to have reinvigoration/relief). It's not remotely practical, but the results might be amusing.