Cleon
Legend
Suggested amount of Constitution drain? Do we want to limit it to long-term exposure, like the original writeup, or simplify it to say 1 or 1dx points per round of exposure?
I would go for a few Con points per day (1 to 1d3) but make it extraordinarily difficult to heal as per the original description of "nothing short of a wish".
Something like:
Death Aura (Su): The radiant golem radiates an invisible but deadly aura. Any living creature that spends at least an hour of any 24-hour period within 30? ft. of the golem must succeed at a DC 30 Fortitude save or take 1d3? Constitution drain. The damage caused by the death aura is particularly tenacious and can only be healed by [something difficult]. Once a creature takes damage from the death aura it can not be harmed again by the radiant golem's death aura until 24 hours has passed. The save DC is Constitution-based.