"Control the air and you control the battle. Control the mind, you control the war."

An Autobot general from the Great War, Obsidian was known for his battlefield strategies. Leading many successful campaigns against Decepticon incursions on Cybertron, he was decorated with the highest military honors. When the Predacon leader, Megatron, decimated the populace by forcibly removing their Sparks, including Obsidian's, it was only a matter of time before Obsidian could gain a measure of revenge. Reoutfitted in a sleek helicopter form, Obsidian feigned loyalty to Megatron, while plotting the Predacon leader's downfall. Recognizing his own frailties, Obsidian paired up with the strongest of Megatron's generals, Tankor. After months of careful planning, these dangerous partners succeeded where many others had failed-Megatron was terminated and Obsidian usurped power for himself. Using Tankor as his enforcer, the former Autobot quelled uprisings with lethal force and held his home planet in an iron grip of fear and tyranny. The dark god, Unicron, saw a benefit to such single-mindedness and plucked Tankor and Obsidian to serve him at the far reaches of the universe. In copter mode, several heat-seeking missiles, capable of penetrating 800 meters underground, are Obsidian's primary weapon. Although an expert in low-flying aerial combat, Obsidian would rather use his wits and intellect to defeat his opponents.