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Onyxx | |
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Publication information | |
Publisher | Marvel Comics |
First appearance | X-Men (vol. 2) #171 (August 2005) |
Created by | Peter Milligan (writer) Salvador Larroca (artist) |
In-story information | |
Full name | Sidney Green |
Species | Human Mutant |
Team affiliations | Chevaliers training squad [ broken anchor ] Xavier Institute X-Men-In-Training |
Abilities | Superhuman strength and durability |
Onyxx (Sidney Green) is a fictional mutant appearing in comic books published by Marvel Comics. He first appeared in X-Men , vol. 2 #171 (August 2005), and was created by Peter Milligan and Salvador Larroca.
As a child, Sidney Green lived in various foster homes and orphanages, unable to find acceptance because of his crude behavior and chronic bedwetting. [1] This was cured after his mutant abilities activated, transforming him into a four-eyed golem-like creature.
Subsequently, Sidney becomes a student at the Xavier Institute as Onyxx and joins Gambit's training squad, the Chevaliers. [2] [3] He develops a crush on fellow student Foxx, who is later revealed to be a disguised Mystique. [4]
Sidney is one of 198 mutants who retain their powers after the Scarlet Witch depowers most mutants on M-Day. [5] [6] [7] [8] He is killed by Wither during the Necrosha event, but is later resurrected following the establishment of Krakoa as a mutant nation. [9] [10] [11] [12] [13] [14]
Onyxx has a craggy granite body, which gives him superhuman strength and durability.