The Transformers - Combiner Wars (2015)

The Autobots and Decepticons' uneasy peace is threatened by the flames of war! Starscream - ruler of Cybertron - makes contact with Windblade's homeworld - and the only defense against a new Cybertronian Empire are Combiners - multiple Cybertronians forming together into huge, dangerous forms! Collects issues #39-41 of Transformers and the first three issues of Transformers: Windblade - Combiner Wars.