Amalgamous Prime

Amalgamous Prime was the joker of the Thirteen and the first Shifter, unpredictable and easygoing. He was the first Cybertronian with the ability of transformation, granted him by his Transformation cog, which became the basis for the cogs in all subsequent Transformer life.

History
Amalgamous Prime disappeared between the original mythic battle with Unicron and when the Quintessons arrived to enslave Cybertron’s inhabitants; his current whereabouts are unknown.