Some more or less exotic or spell defences
Touch of the Eel (Relics and Rituals)
Fire Shield (wimpy)
Polymorph (from a 'phylactery of change' if need be...) - go for oozes, hehe
Wild shape (Porcupine ? Hedgehog ? Giant constrictor ? Skunk ? Fire Elemental ? )
Displacement (Cloak of this is useful )
Blur (weak but cheap )
Gaseous Form
Ghostform
Shadowdancers pet shadows (goes for many other necromantic types, too ), more of a deterrent, cause they will munch/drain him promptly if he is busy grappling
Oozemasters
Clerics with Travel domain power
Scarred Land Dwarven Runecaster with some wicked runes charged
Lycanthropes
Succubus (hehe)
Nymphs