Menyar-Ag is a being of "unimaginable arcane and psionic power", and he was able to perform miraculous magical feats. As such, the deity-king was able to transcend the constraints of the mortal coil, and his lifespan was greatly extended. Due to his mastery of the mind, Menyar-Ag remained in a static, unmoving state. In Limbo, he appeared to actually be a demigod.
After the fall of Limbo, he became sealed away from the rest of the Outer Planes, lost somewhere in the ever-changing chaos.
According to legend, it is unknown if the deity-king is alive, dead, or in some other state. However, it is known that he is an extraordinary psion who is worshiped and revered by the githzerai.