The Horn is a special item in The Banner Saga that is present for all battles, and that resides at the top of the screen.
As battle progresses, the Horn will fill. Deplete the Horn one Willpower star at a time when you click it.
Description[edit]
Horn can be used one time for each kill you make, and grants 1 Willpower to the active unit. Each kill adds a star, showing how many times it can be used.
