Deck of Dungeons
D&D 5E Loot Table Generator
D&D 5E Item List
Potion of Heroism
For 1 hour after drinking it, you gain 10 temporary hit points that last for 1 hour. For the same duration, you are under the effect of the bless spell (no concentration required). This blue potion bubbles and steams as if boiling.
Source: SRD under the Open Game License v 1.0a