Lands of Algia 4E
This deep purple, putrescent liquid fends off diseases and poisons.
Found on the second level of the caverns under the temple of Nerilous. Session 4.
Power (Consumable): Minor Action. Drink this potion and spend a healing surge. You do not regain hit points as normal. Instead, gain resist 5 necrotic and resist 5 poison until the end of the encounter. You also gain a +5 power bonus to your next Endurance check against any disease of level 5 or lower.
Published in Adventurer’s Vault, page(s) 187.