What if multiversal man got his powers in the MCU and was in infinity war

Thanos interogation

The screen cuts to a boy in a blue red and white suit with a mix of a spider and a star on his chest  Thanos: well well well so this is the magician from another universe who knows the location of the stones Aiden : no matter how much you torchere me I won't tell a thing  Thanos: so be it ebony : with pleasure  Aiden: aghhhhhhh let the power of the watcher  flow trough me let me do this I've more than proved I am worthy  let me absorb all the infinity stones in the entire multiverse but the original six stones in this universe   The other stones in this universe shall be absorbed including the multiversal stone if I have proven worthy let this succeed  Thanos: WHAT THE HELL IS HAPPENING Aiden : I did it it .. it ... succeeded ebony what succeed  Thanos  : apply the lie detector  Aiden : you fool you shouldn't have let me cast that spell  Ebony : shall I silence him father Thanos: no let him finish I want to see where this goes  Aiden: I have absorbed all the infinty  stones in the multiverse including the ones in this universe except the original six infinty stones  Thanos: there's more than six ebony: he is indeed telling the truth  Aiden: and with the multiversal and balance stone  every power in existence and I can control it all because dog the balance stone including every weapon in existence but the six original infinity stones in this universe  Ebony : he- he is telling the truth   Aiden : power dampeners don't work on me because that's technically an ability including I can turn immortality on and off  your lucky the rules of magic are so complex because since this holding chamber was already holding me before I got the powers I can't yet escape but when I do - Thanos: you won't author : in this time line he kidnapped Gamora and the beginning and he starts out with no stones    Gamora : I will never tell you the location to the soul stone Thanos: then I'll take it off your corpse Aiden: WAIT spare her life and let her go and send her back to her friends and I will give you the location of the stone Thanos : deal Aiden : wait I'm not finished   You need to shake my hand it's a magic pact deal if you break it and kill Gamora you will never be able to get the soul stone Thanos: * shaking hand* deal Thanos : your useless now daughter you can  go back to your guardian freinds Ebony  take her to  the escape pod Ebony : yes father 
Author: so this time he will bring nebula to vormir and this time he sacrifices her for the soul stone this is a time skip but I'll show you this video

Just imagine this is playing as she's sacrificed for the soul stone  the stone is still put in the correct place like In the movie however  Thanos collects the stone but when he does Aiden escapes  in one of thanoses escape pods