Potion of decay
|A vile and putrid cursed liquid which causes your flesh to decay before your very eyes.|
Quaffing a potion of decay will make characters without rot resistance immediately lose 2+1d3 max HP (as though they had suffered rot damage). You can repair this damage by healing yourself while already at full HP. Undead characters are unaffected.
Potions of decay were removed from the game in 0.17.
Prior to 0.12, the loss of max HP occurred over time through the rot status effect. Also, the potion was useful when coupled with Evaporate, an obsolete spell that allowed you to turn potions into harmful clouds. Potions of decay would create clouds of extremely powerful miasma.
The following methods for generating potions of decay have been removed in recent versions: