Riftward Breaching (Su)

At 10th level, whenever one or more creatures appear via a conjuration effect (including calling, summoning, or teleportation effects) within 30 feet of a Blackfire Adept, she can as an immediate action unleash a blackfire eruption that targets all such creatures within 30 feet (but does not affect other creatures). Creatures that fail their saving throws are immediately transported to a random plane in the evil Outer Planes as though affected by a planeshift spell.