[Shovah32]

If you have nothing better to do with your fire kings you can always go with:
Faithful(for luck), other hand item(I like eye shields. If you need a certain resistance you could get it here), skullcap, stymphallian wings, heart of life(or amulet of resilence if you can't do this), ring of regeneration.

Script him to phoenix pyre, maybe hold once or twice, and then attack rear/archers. With flight and trample he will be on them rather quickly and causing damage, setting people alight with his heat aura and fire shield.
Should he die, which he probably shouldn't - flying gives him a better choice of targets. Teleporting SC killer squads can kill him, but they kill most raiding SCs so...

My preferred king for this is rhuax, with summon earthpower being great for this build(more reinvigoration) and ironskin making him tougher in many cases than ethereality.