Tremorsense(Spell Compendium, p. 224)
Level: Ranger 2, Sorcerer 3, Wizard 3,
Components: V, S, AF, DF,
Casting Time: 1 standard action
Duration: 10 minutes/level (D)
You cast this spell and know where each of your opponents stands. Their presence is marked in your mind like ripples radiating along the surface of a pond.
You can automatically pinpoint the location of any object or creature within 30 feet that is in contact with the ground.
Arcane Focus: A fleck of skin from a creature that has tremorsense.