Adrenaline, flesh sacrifice (elf), enrage, skin graft, glass cannon, savage sortilage
Enrage, adrenaline, flesh sacrifice, spam spells to 1 point or so, cast chameleon; turn becomes yours again as enemy can't see you, cast spells that remain till low in points, skin graft, adrenaline, flesh sacrifice, spells till 1-2 points, chameleon again, next turn spam double wands till targets are dead.
That will kill most things, even solo, without taking a single hit.