Adrian Zandar (Marvel AU)

Introduction
Adrian Zandar, otherwise known by his alias "Echelon" or is a time traveler born in the year 25,000 and died in the year 2031. He was an ally and enemy to the

super-hero group called "The Avengers," Earth's mightiest heroes.

Birth and escape (25,000 C.E)
Adrian was born in the year 25,000 C.E to Kael Zandar and Dasha Zandar. However, Dasha's father, Xenon Aylson, knew of Adrian a year prior to his birth. Xenon witnessed Adrian change the timeline, and wanted to kill Adrian before he changed anything else. With Adrian as a defenseless child, he could be easily killed now. However Kael and Dasha would not put up with it. Kael and Dasha built time-machines in his ship the Voidwalker and escaped to the past. Xenon did as well, and they blew out into a unknown region of time.

Saved and adopted (2003 C.E)
Xenon battles Kael and Dasha aboard their ship, desperately trying to kill Adrian aboard. Slamming into the ship, the Voidwalker exits Time-Warp and crash lands in 2003. With the ship damaged beyond repair, Kael and Dasha know they will die, and send Adrian to an adoption center, where he is adopted by Russell and Elaine Johnson. Xenon faces off against Kael and Dasha for one last time, and kills them both. His own daughter without mercy. However, he faced a problem now. He was stuck in a time he shouldn't be.

New Years Party and parents death (2012 C.E)
Going to time square with his parents on New Years, the mischief god known as Loki attacked on New Years day. Running under a table scared, and lost from his parents, Adrian was most likely going to die if it weren't for Tessa Stone and Captain America saving him and getting him to a school for safety. However sadly, his parents died in service as police officers defending their city. Adrian is then taken into SHIELD custody after they discover his unknown origins.

[ Events here and beyond can change ] Time at SHIELD and moved to HYDRA (2013 C.E)
After discovering he is from the future, the HYDRA spies within SHIELD wish to take him with them and experiment on him. Successfully taking him to a HYDRA base they begin to work on him and test his evolved human DNA. This inhuman torture to a 10 year old child continues for a whole year until the collapse of SHIELD. These experiments give him the super-powers he would discover he had later in 2019.

Collapse of SHIELD and rescue (2014 C.E)
After SHIELD collapses and all the info is released to the public, the HYDRA base Adrian is kept at is raided by the government and Adrian is saved, being taken into caring custody of a remaining small faction of the true SHIELD. Even then, the men at SHIELD want to train him to work for them.

The snap (2018 C.E)
At 14 years old, the mad titan known as Thanos attacks and kills half of all life in the Universe. Tons of people Adrian loved and cared about were taken from him and Adrian rolls down a path of anger, depression and suicide attempts. Vowing to himself to kill Thanos. However he does not do this, instead it is the God of Thunder known as Thor.

Storming of Area 51 (2019 C.E)
After escaping the clutches of the SHIELD faction after the snap, millions of people decide to take advantage of the collapsing world around them and discover secrets of their own. One being Area 51. Adrian makes it inside thanks to his SHIELD training, but he discovers his origins and his father's suit, the Echelon-85. However it is booby trapped and he falls for it, causing the room around him to explode. Ripping his limbs off and basically killing him, Adrian is left under the rubble to die at only 15.

Leaving the base (2019 C.E)
After being fitted with cybernetics almost all over his body. This includes: His arms, legs, spine, eyes, lungs, and a whole second robotic heart. However discovering that he had super-powers, he broke free of their clutches, stole his father's suit back, and returned to what even remained of SHIELD, if any remained at all.

Reversing the snap (2023 C.E)
After the Avengers time-travel to stop Thanos, Hulk snaps and reverses the effects done 5 years ago. Now Grateful, the Avengers and everyone available fight against the titan. However in the end Tony Stark gives his life to stop them. However an unknown incident causes Adrian to go psycho and kill a best friend, and to go missing.

Adrian's return (2027 C.E)
Adrian returns out of no where 4 years later in 2027, but he is evil and is on a quest of destruction. Everything that has ever happened to him and finally built up and exploded, causing Adrian to go on a rampage of revenge and chaos. The HYDRA experimentations, losing everyone 5 years ago, the loss of the majority of his body, his parents deaths, it was too much for him now. So much anger built up for years had finally released and he was determined to kill everyone. And he means every single living thing. Nothing shall survive his rage.

Realization (2030 C.E)
After another 3 years of terrorism and killing, Adrian realizes what he has done. Full of regret, pain and sorrow for those he's killed, Adrian destroys his suit, cybernetics and everything and lives alone on a island, where he can no longer hurt people.

Death (2031 C.E)
After being found by the New Avengers and SWORD, Adrian returns to help in a new conflict similar to the Thanos incident, however this time Adrian sacrifices himself to prove that he isn't evil anymore, but also that he deserved to die after what he had previously done.