This is a general Prestige class that may be applicable to the Forgotten Realms Campaign
The skypledged represent a mystical tradition among the raptorans that hearkens back to an ancient pact with powerful lords of the Elemental Plane of Air. The skypledged are a tangible manifestation of that pact, exchanging divine power with one another and with powerful air elementals.
Hit Die: d6
To qualify to become a Skypledged, a character must fulfill all the following criteria:
Spells: Ability to cast summon monster IV or summon nature's ally IV.