Optimus Prime » 5 issues
Volume » Published by IDW Publishing. Started in 1998.
Onyx Prime appears in 5 issues in this volume.
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Issue #15
The Falling Chapter 1: Surfeit of Primes
January 2018
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Issue #16
The Falling Chapter 2: Another Mine
February 2018
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Issue #17
The Falling Chapter 3: The Ground
March 2018
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Issue #18
The Falling Interlude: The First Who Was Named
April 2018
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Issue #19
The Falling Chapter 4: The Hallowing
May 2018
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