[jutetrea]

I find it well worth its weight in gold (slaves). I just throw it on a throwaway summoned unit, not even a high MR special. It makes a banelord pretty brutal in and of itself. I'd equip it with generic items, nothing I'd be too afraid to lose. If you lose it, shrug. Maybe one of the enemy mages is now horrormarked. Or even one of their brutal SCs that will even be more nasty... for a limited time.

If you're lucky it goes away and you can rinse, repeat.

Its a tad annoying when the unit's insane at a critical juncture, but usually survivable.

Its definitely a fun toy, just don't get too attached to either the item or the unit.