The Transformers: Monstrosity — IDW Publishing
Issue: #6
12 CHAPTER DIGITAL EXCLUSIVE SERIES! MONSTERS RISING! JETFIRE and the Autobots are confronted by horrifying creatures from deep below Cybertron-fueled by a terrifying new form of energon! Plus: the origin of the DINOBOTS is revealed!
First appearances: Skar
Creators: John Barber, Livio Ramondelli, Tom B. Long, Chris Metzen, Flint Dille, Mariel Romero
Characters: Optimus Prime, Ratchet, Wheeljack, Trypticon, Perceptor, Skar, Sludge, Slag, Snarl, Jetfire, Kup, Grimlock, Swoop