The cruiser would later be a part of a strike on the Predacon base, during which Rampage unleashed a barrage of missiles on it. The Predacons were driven off by an invisible force-the cloaked Transwarp cruiser flown by Ravage. Rampage was a major component of the assault on the Axalon when it appeared as though the Maximals were going to receive reinforcements from Cybertron. Rampage's services were further pressed into use when the Predacons assaulted a valley full of anthropoids, however his contribution came to an end when Dinobot forcibly inserted Waspinator into his main gun with predictable results.

Megatron had other plans in motion, using Rampage's weaponry to destroy a mountain, proving that the future recorded on the Golden Disk was mutable. Rampage made no secret of his hatred for his new 'master', anticipating the arrival of Maximal reinforcements from Cybertron, and the demise Megatron would surely receive as a result. Megatron thus welcomed him into the Predacon fold, dubbing him 'Rampage'. When X attempted to turn his weapons on his 'savior', Megatron revealed that he held half of X's spark in a special cage lined with energon crystals, allowing him to torture the beast at will with a mere squeeze.

Megatron then had him brought back to the Predacon base and repaired. As Protoform X lay immobilized, Megatron arrived and, using a blade of pure energon, removed a portion of his indestructible spark.

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