This horn can be sounded to call the Legion of Virkhus, a unit of Solamnic Knights who followed the Rose Knight Virkhus during the Age of Might. A defender of the weak and unitiring foe of injustice, Virkhus disappeared at the same time of Cataclysm.

If sounded by a character of good alignment who is allied with the Knights of Solamnia, the spirits of Virkhus' valiant Knights return to strengthen the characters's allies on the battlefield, granting each ally a +4 competence bonus to attacks, saves, and skill checks, as well as 4d10 temporary hit points, until the end of the battle.