Gate

Conjuration (Creation or Calling)
Level: Clr 9, Sor/Wiz 9
Components: V, S
Casting Time: 1 standard action
Range: Medium (100 ft. + 10 ft./level)
Effect: See text
Duration: 1 round/level
Saving Throw: None
Spell Resistance: No

The caster summons a one outsider from a list of 26 below.
Astral Deva, Bralani Eladrin, Celestial Avenger, Hound Archon, Lantern Archon, Word Archon, Balor, Bezekira, Cornugon, Erinyes, Gelugon, Glabrezu, Hamatula, Imp, Marilith, Osyluth, Succubus, Vrock, Elder Air Elemental, Elder Earth Elemental, Elder Fire Elemental, Elder Water Elemental, Steam Mephit, Green Slaad, Red Slaadi, Death Slaadi.