Damnation Stride

Conjuration (Teleportation) [fire]
Level: Sorcerer */Wizard * 5, Summoner * 4, Warlock * 5
Components: V
Casting Time: 1 Standard Action
Range: long (400 ft. + 40 ft./level)
Target: you (teleportation) and creatures within a 10-foot-radius burst (burst of flame) (see text)
Duration: instantaneous
Saving Throw: Reflex half, see text
Spell Resistance: no
  This spell functions like dimension door, except you leave behind a burst of fire. Choose one corner of your starting square. A 10-foot-radius burst of flame explodes from that corner the moment you leave, dealing 4d6 points of fire damage.