Blessing of the Lone Champion

Supernatural Gift (Blessing), from Dragon Delves

Some heroes walk into the dark with no one at their side. No companion to pull them from the jaws of a monster, no friend to share the watch or bind their wounds. The powers of the multiverse take note of such souls. Whether the favor comes from a god, from fate itself, or from some old and nameless spirit that admires stubborn courage, it settles on the lone champion like a hand on the shoulder: a spark of daring that never quite goes out, and a toughness that grows as they do.

The DM grants this blessing to a hero who adventures alone. It lasts for the duration of the adventure, and while it lasts it gives you the following benefits.

Heroic Inspiration. Fortune favors you when you need it most. You gain Heroic Inspiration whenever you finish a Short or Long Rest, and whenever the DM has you roll Initiative. As usual, you can hold only one Heroic Inspiration at a time.

Temporary Hit Points. The blessing hardens you against the blows no ally will turn aside. When you gain this blessing, and again each time you gain a level, you gain Temporary Hit Points equal to 10 times your level. These Temporary Hit Points don't return when you rest, and any new ones replace those you still have rather than adding to them.