Boon of Combat Enhancement

Dancing with spirits of old, Knighted to one of the Fey courts, or the left hand to a stranger in the Nine-Hells.
Ascended beyond the title of Grandmaster, a bloodied blade or with brother at side.
Whatever the source, you have gained considerable combat prowess.

When you miss with a melee weapon attack, you can add +20 to the roll. You can use this Boon with 1 plus your proficiency bonus but once you use this boon, you can’t use it again until you finish a long rest.