Shoot me. I killed my lengthy post accidentally. Double drat.
I'll have to give the cliff notes version.
Bakemono Kunshu, Pretender
Yukinaga, Heart Finder, National Hero (Dom 3.08, unmodded)
An immortal pretender plus immortal hero? Nice.
I've been working on developing the Kunshu into a supercombatant. I've had limited success, quite a few experimental builds, and I'll share what I've had the most fun with.
It does need tuning, but a Kunshu with fire 6, death6, air 2, Five dominion.
Script
Mistform-> Fireshield-> Flight ->Attack Rear
There are some issues with scripting close combat spells, and scripting, but you can try flight->attack->immolation. Unfortunately, you have no innate fire resistance (but immortal) and can only issue a random attack order in that sequence, no hopping to the rear.