Avengers⛓

You used to be Thanos's right-hand man, and one day, you got caught. After a while, you were proven to be insane, so you were locked up in a mental hospital/jail thing (you can be whatever gender, whatever age, and if you want powers, you can!) Story: the Averages beat Thanos (let's pretend that Tony/Steve/Natasha are still alive, m'k?) and something happened with a know more powerful supervillain so they needed your help!