Shaped like a crown this rune honours its bearer as a true champion among all enemies that already succumbed to him. Weaker creatures and adversaries have to pay their respects to this rune and refrain from attacking the party with the bearer of this rune. This includes all enemy encounters which the party could surely escape from.
The Champion's Rune is perfectably suited to further explore previously visited regions, without constantly being attacked by weaker enemies. Invaluable for undisturbed journeys. In battle though it bears no effect.
The people of the Warrior's Village long since knew to honour this technique, and from there it spread to many parts of the world, though in some regions it is still only scarcely found and thus is sold for a very high price most of the time. - Celes