Elemental Swarm

9th level conjuration

Casting Time 10 minutes

Range 100 ft

Components V, S

Duration 4 hours

This spell opens a portal to an Elemental Plane and summons elementals from it. Choose air, earth, fire, or water. When the spell is complete, 2d4 elementals of the chosen type appear. Ten minutes later, 1d4 greater elementals1 appear. Ten minutes after that, one elder elemental1 appears. Each elemental has maximum hit points per HD.

Once these creatures appear, they serve you for the duration of the spell.

The elementals obey you explicitly and never attack you, even if someone else manages to gain control over them. You do not need to concentrate to maintain control over the elementals. You can dismiss them singly or in groups at any time.