Agmundr
The giant stone swords of Agmundr stand on a rocky outcropping along Sverdsfjord, one of the southernmost bays in that rugged, northland known locally as Izotz. Centuries ago, two kings vied for control of Izotz. Ecgberht and Hildebrand waged war against each other, and the conflict grew increasingly bitter and lawless as both kings sought the advantage over the other. Villages were burned, and their citizens put to the sword. Sacred places were defiled. The blood of innocents cried out for justice, but ambition and malice deafened both Ecgberht and Hildebrand. Into this chaos from out of the ice-locked north strode Guđbrandr.
Haunted by visions of those innocents caught in the conflict between the two kings, Guđbrandr swept into the borderlands between the kingdoms. The opposing armies broke against Guđbrandr’s righteous fury. Others, war-weary, flocked to Guđbrandr’s banner. Before long, Ecgberht and Hildebrand found themselves on the defensive. When winter came and the polar bears arrived to support Guđbrandr, the warring kings decided that perhaps peace was a better option.
In the dead of winter, Guđbrandr met with Ecgberht and Hildebrand at Agmundr by the frozen Sverdsfjord. Guđbrandr took the kings’ swords and thrust them into the rocks. Then he took his own blade and did the same with it. The two kings knelt and swore fealty to Guđbrandr and amity between themselves. The witnesses to this agreement stood awed as the three swords turned to stone and grew to enormous size. The largest sword belonged to the victorious Guđbrandr, and the two smaller swords to the defeated kings Ecgberht and Hildebrand.
Since that day, those northern lands are ruled by a triumvirate of kings descended from Guđbrandr, Ecgberht, and Hildebrand. Each king’s coronation takes place at Agmundr, and the ancient oaths of fealty and amity are repeated in that god-touched place.
Anyone who dedicates himself to a cause or quest may journey to Agmundr and swear an oath on the power of those stone swords.
Barbarians of Lemuria
Upon swearing an oath on the power of Agmundr to accomplish some task, a hero gains 1d6 Fate Points. The hero can use these Fate Points to grant himself a one-off boon, just as if he were a priest.
Dungeon World
When you bolster yourself prior to swearing an oath on the power of Agmundr, you gain preparation as normal, plus you gain hold equal to preparation+2. If you violate your oath, the power of Agmundr will make its displeasure known. As long as you act to fulfill your oath, you may spend hold, 1 for 1, to choose an option:
• Defy danger as if you rolled a 10+ instead of rolling the dice.
• Heal damage equal to half your max HP.
• Inflict maximum damage with an attack.
• Use an advanced move appropriate to your class one time as if you were one level higher.
Swords & Wizardry
A character who swears an oath on the power Agmundr to accomplish some task gains a +1 bonus to attack rolls and saving throws until that task is fulfilled. If the character does not diligently work at performing the task, a deadly weakness sets in (50% reduction in Strength), and an attempt to entirely abandon the quest incurs a curse.