Potion of Heroism

From Dungeon Master's Guide, page 188. Found on Magic Item Table C.

Description
''Potion, rare. 0.5 lbs.''

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.