This spell is sometimes granted to High Old ones, clan leaders, or great dwarven heroes in times of need, by manifestation of a dwarven deity. It is not otherwise usable by dwarves.
It causes a rune of power (see that spell) to form anywhere in range, in midair, without the caster inscribing it. The rune of power takes immediate effect on a target or area selected by the caster. A successful saving throw vs. spell by a target creature causes the rune of power to affect an area adjacent to the one intended (perhaps endangering another friendly or hostile creature that does not receive a saving throw).
Notes: A very rare manifestation of dwarven deities in the Forgotten Realms setting.