Aberration

Aberrations were creatures that were unnatural and had unconventional morphologies.

Description
These creatures did not fit into the natural world. Though some believed aberrations originated from the Far Realm, this was not true for all aberrations. Driders, for example, were unnatural crosses between drow and spiders. Created by the twisted goddess Lolth, the drow had their bodies aberrantly transformed, and thus were classed as aberrations.

Around the tumultuous time between the Spellplague and the Second Sundering, it was thought that aberrations were from, or touched, by the Far Realm. This made these creatures seem utterly alien to the Prime Material Plane, the fundamental planes, the parallel planes, or any other regions of the local cosmology.

Abilities
Aberrations generally all had bizarre anatomies, strange abilities, alien mindsets, or any combination thereof. Most aberrations had darkvision out to, but as a group, they had no other special abilities or immunities.