I've just entered the Underdark at level 3 via the Zentharim hideout elevator, and am facing two minotaurs that I have to get past. I try to shoot one from above the cliff out of hiding with chill touch, because the spell SPECIFICALLY STATES THAT ANY CREATURE HIT WITH IT CAN! NOT! REGAIN!!! HITPOINTS!!!!
Minotaur instantly heals back to full.
Larian. Fix your shit. This is not D&D. This is a farce!