Inner Planes (2014)

From publisher blurb:

The seventh volume in our Mythic Monsters series, Mythic Monsters: Inner Planes brings you a dozen and one weirdling wanderers from the Elemental and Ethereal Planes, roaming planar portals and primordial energy pools to menace those that delve too deeply into the fundamental roots of the universe, or that ask too great a price from races ancient when their world was young. Twelve of your favorite planar creatures are here, updated for the mythic rules, and when we say updated we mean complete stat blocks, yes, but more than that every ancient ambassador and primal predator of the inner planes has its own unique and exciting new mythic abilities, from a mythic xill's otherworldly coordination and phase warrior to the conflagration and searing arrogance of a mythic noble efreeti malik!

This product includes mythic versions of the nobles of the four great genie races, as well as mythic jann and the undead of the genie world, mythic ghuls, as well as mythic versions of such classic creatures as the salamander and xorn, covering CRs from 5 to 16. In addition to a dozen existing otherworldly foes, Mythic Monsters: Inner Planes also describes the mysterious Portal Code and its applications for plane travelers, as well as the nature of genies and wishes in a mythic campaign, including the ability of mythic genies to overrule the wishes of their lesser kin. To top it all off, Mythic Monsters: Inner Planes introduces an entirely new 13th mythic monster, the implacable liminal hound, hunter of the transitive realms and teleportational vortices that join the planes together, and a deadly menace to those whose frequent jaunts between worlds threaten to unravel the spatial fabric of reality!