The Transformers: Hearts of Steel staunch ally of Muldoon after the Decepticons betray him. Only four Autobots were mentioned by name in the series: Bumblebee, Ironhide (in the TPB when he gives his name it was changed to Sideswipe) and Optimus Prime although he did not appear, though others are recognizable as G1 Generation 1 characters, introduced as toys in 1984. The opposite is true for the Decepticons, with many being named. Others are left unnamed but are recognizable such as Ravage. In addition to their original alternate modes as fantasy beasts, the Transformers later adopt alternate modes appropriate to the era in which they
Transformers: The Covenant of Primus on Earth during the time of the Beast Wars, where Unicron's displaced life force had landed after the destruction of his body. After losing several of their number, they realized that the key to defeating Unicron was to utilize their lifeforce, which was produced by Primus himself. Together with an army of Transformers of all factions from across time and space, they succeeded in defeating Shokaract, allowing Unicron's lifeforce to be drawn back into the time vortex from which it had emerged. Transformers: The Covenant of Primus Transformers: The Covenant of Primus is a companion novel to the so-called Aligned