Terrorcon (Transformers: Prime)

Terrorcons are a subspecies of undead Cybertronians found on both Earth and Cybertron that are created using Dark Energon.

Anatomy
Terrorcons share a similar biology to other Cybertronians, except they are zombie-like and infused with a glowing purple Energon-like substance called Dark Energon.

Powers and abilities
Each Terrorcon is powerful and relentless in its own right. En masse, their persistence and Dark Energon they radiate can sap the strength of their Autobot prey until they can pull it down and tear it apart.

Weaknesses
Despite their ferocity, Terrorcons are not invulnerable. Energy blasts of sufficient force can deter them, though the best method is to use bladed weapons to slice them to pieces; the smaller the better. This is because the Dark Energon charge cannot sustain itself within the smaller, disparate components.

Simply slicing them in half does not seem to be sufficient, though the method of irradiation may be a factor. The one case known to be prodigiously active despite total bisection, the Autobot known as Cliffjumper, was the product of a direct implantation of crystallized Dark Energon carried out by Megatron. All others to date have been created by absorbing energies emitted over a wide area by a shattered crystal.

Culture and society
Born from dead Cybertronians infused with Dark Energon, the Terrorcons are Megatron's greatest asset: an undead army under his thrall.