Note: Called "Return to Earth" in Priest's Spell Compendium.
This spell turns the physical bodies of undead creatures within 30 feet of the caster into dust. The affected undead must actually have physical forms; for example, ghosts and specters are not subject to this spell. Corpses inhabited by spirits (such as wights) and undead with more than 4 Hit Dice are allowed a saving throw vs. death magic, but zombies, skeletons and similar animated undead with 4 Hit Dice or less are not. The caster can affect 1 Hit Die of undead for each level of experience. Once cast, bits of the undead creatures begin to crumble and fall to the ground, completely destroying them in 3 rounds. As they deteriorate, affected undead creatures suffer a cumulative -1 to attack rolls each round after the spell has taken affect.
The material component is a pinch of dust.
Notes: Uncommon for priests from the Dark Sun setting.