Greater planar ally

Greater planar ally was a conjuration spell that called (an) outsider(s) or elemental(s) from their home plane.

Effect
This spell functioned in the same manner as lesser planar ally, except that the caster could call more powerful creatures. The creature(s) agreed to help the caster in return for a favor.

When a creature was called of the good, evil, chaotic, lawful, air, earth, fire, or water types, greater planar ally was a spell of that type.