Fey CallerSource Ultimate Intrigue pg. 71
The strange creatures known as fey hail from a variety of places, including the natural world and their own domains on other planes. Fey callers are summoners whose voices reach out into those strange faerie realms and call forth the fey who dwell there. The touch of the fey makes the fey caller different from those summoners who call other outsiders to their sides as eidolons.
Class Skills: A fey caller adds Bluff, Diplomacy, Disguise, Knowledge (nature), Knowledge (planes), and Survival to his list of class skills, instead of all Knowledge skills.
This alters the unchained summoner’s class skills.
Nature’s Call: Instead of summoning creatures from the summon monster list, the fey caller’s summoning spell-like ability summons creatures from the list for the summon nature’s ally spell of the same level. It still follows the other rules and restrictions for the summoner’s summon monster spell-like ability.
This ability alters the summoner’s summon monster spell-like ability.
Fey Eidolon: A fey caller’s eidolon is still an outsider, and its base statistics don’t change, but it also counts as a fey. A fey caller's eidolon has the Fey subtype instead of one of the subtypes from Pathfinder Unchained.