Fire

A warding rune against flame: whoever bears an item carved with it gains +1 on saves against attacks based on fire.

Like every rune, it only works once it has been cut into an object: a sharp tool and one full hour of engraving or etching are all it takes, and the work never fails. Each such item counts as a magic item toward the bearer's limit of seven, and toward the limit of three runic devices that binds everyone except witches, warlocks, druids and shamans.