Summon monster VI

Summon monster VI is a conjuration spell that calls an outsider to fight for the caster. Druids can spontaneously cast this in place of a 6th level spell.

Effects
This spell functions in the same manner as Summon monster I, except you can summon one creature from the 6th-level list, 1d3 creatures of the same type from the 5th-level list, or 1d4+1 creatures of the same type from a lower-level list. (See summon monster IX for the full list.)

Descriptor note
When you use this spell to summon an air, chaotic, earth, evil, fire, good, lawful, or water creature, it is a spell of that type. For instance, if you summoned a celestial unicorn, it would have the lawful and good descriptors.