Aiden used to be a chubby young man, interested in video games and eating fast food. He then got the body of an immortal Celtic warlord. His chosen codename, Anachronism, means "someone or something that belongs to an earlier time". Before Murderworld and his new body, he accidently walked in on Kid Briton cheating on his girlfiriend, Apex, with fellow Braddock Academy student Nara. Kid Briton threatened to beat him up if he told anyone. It would appear that this incident caused Aiden to inherit his new body. When he inherited the new body, Nara began to flirt with him and the two came close to kissing before Kid Briton fought with him again. When he and the rest of his friends were captured by Arcade, Aiden and his best friend Bloodstone were caught in the middle of a plot started by Apex to get revenge on Nara. The two of them fell off a bridge into the water and Nara was subsequently blasted into the water by Death Locket, who was swayed into doing so by Apex.
Eventually, Arcade set it up so the Braddock Academy would reunite and Nara began to attack Apex. Apex manipulated Death Locket into attacking Nara and Anachronism but then Bloodstone blasted Death Locket out of the way, revealing the plot. Apex then swayed Brian into saving her, who then began to attack and dealt a grave wound to Nara. Before he could finish her off though, Anachronism intervened and decapitated his rival.
Afterwards, Aiden was completely unresponsive, unable to accept that he had actual killed someone. Nara stepped in and pointed out that he had saved her and kissed him. While the kissed, Bloodstone approached fellow Arena contestants Cammi, Nico Minoru, and Chase Stein, who had glimpsed the scene from a distance, and offered to share their supplies with them if they helped to bury Kid Briton.
When Juston Seyfert and his Sentinel Mark IV attacked Apex, whose body was now being controlled by Katy's twin brother Tim, and Death Locket, Aiden and Nara were off alone together. Afterwards, when the group was deciding whether or not to kill Apex, Aiden was one of the five contestants who voted to spare him, going against Nara who believed they had to kill Tim in order to protect themselves from Katy.
Katy eventually retook control of her shared body and killed Juston for his sentinel in addition to mind controlling Death Locket. Using the two, she attacked the other teens. While Nico fended off Katy's assault, Aiden grabbed an unconscious X-23, who had attempted to kill Katy previously but was stopped by the sentinel. Fleeing through Nico's portal, Aiden was found himself in Safe Zone 3, where Avengers Academy students Hazmat and Reptil had been while other events unfolded. Aiden followed the rest of the group back to Murderworld proper in order to find and help Nico.
Once they arrived, however, the group fell apart, with Reptil becoming lost in the air and Hazmat and X-23 running off into the woods after Hazmat thought she saw her deceased boyfriend Mettle. After realizing that they had wandered in a circle and arrived back where they had started, Bloodstone lashed out verbally at Cammi. Coming to her defense, Aiden found himself in a fight with Cullen after the latter had insulted Nara. Luckily, Nara intervened and took Aiden into the woods to work out his frustration by attacking trees instead of allies. While there, Nara revealed that Cullen had a crush on him, but the two were interrupted by Arcade who flooded the area with Trigger Scent which caused X-23 to savagely attack them.
Fleeing for their lives from her, Aiden and Nara ran to the beach where Cammi and Bloodstone were. Nara tripped on the sand and went down, but before Laura could make the kill, Aiden came to her defense. Seeing him in danger, Bloodstone removed his Bloodstone Ring, which kept a mystical parasite bonded to his soul, called a Glartrox, under control. While the monster attacked Laura, Cammi and Aiden tried to figure out how to stop it after the monster began to attack the other survivors. With only two options, Cammi, Nara, and Aiden searched for the ring which could be used to banish the monster back into Cullen. Swiftly finding and losing the ring, Cammi and Aiden went to distract the monster while Nara went to look for the ring, which had fallen into the nearby water.
With the Glartrox growing stronger and hope dimming, Aiden revealed the second way of stopping it: killing the host's body. But before he could go through with it, Nara found the ring, which caused the Glartrox to charge her and throw Aiden clear. Nara touched the ring to the monster's skin and banished it back into Cullen, but not before it cut her. Nara bleed out and died in Aiden's arms
The death of Nara sent Aiden into a frenzy, causing him to attack Cullen, swinging his axe into his chest. In an attempt to keep him from killing Cullen, Cammi tried to get Aiden to stop by threatening to shoot him. When that didn't work, she opened fire and blasted him clear. Finding himself near Reptil, who had been thrown clear by Chase, Aiden charged him, axe held at the ready.
Anachronism was created by writer Dennis Hopeless and artist Kevin Walker. He first appeared in the story "Worse Things" in Avengers Arena #1 (Nov. 2013).
Powers & Abilities
Aiden has somehow inherited the body of an immortal Celtic warlord and wields a large axe. Aiden also possesses enhanced strength and is easily able to cleave his axe threw trees. Unarmed, he is strong enough to pull trees out by their roots.
After being stuck in his new body, Aiden's personality has become more aggressive than it was previously.