The Transformers: Regeneration One — IDW Publishing
Issue: #86
DARK REIGN! The fallout from the devastation on Earth ripples outwards, all the way to Nebulos, where GRIMLOCK faces his own darkest demons and a fateful choice that may cost him his very Spark. The dark reign of SCORPONOK begins here, and nothing will ever be the same again!
Creators: Simon Furman, Simon Furman, Andrew Wildman, Josh Burcham, Geoff Senior, John-Paul Bove, Guido Guidi, Stephen Baskerville, Jason Cardy
Characters: Galvatron, Megatron, Octane, Optimus Prime, Prowl, Rodimus Prime, Silverbolt, Soundwave, Starscream, Wheeljack, G. B. Blackrock, Red Alert, Skids, Spike Witwicky, Huffer, Snaptrap, Grapple, Sludge, Slag, Snarl