Comments like this is proof that people have not watched ANY of the Doctor Strange appearances in the MCU. Especially not his solo movie. The guy is super arrogant and always pushes the limits.
I own all of them. In his solo movie he has an arrogance to him, but realizes use of eye of agamotto should be something only used in dire situations. He also learns humility, Strange making a spell that will change people sounds unlike him. I know he is arrogantly, but not in a way where he would inadvertently do a spell thats was for personal gain.
Why would strange have a disagreement with peter that would lead to them fighting as seen in the trailer? It is believed strange tries to undo his so called spell, in doing so would kill all those in our reality who are not suppose to be, and spiderman disagrees with them being wiped out.
Where did strange try to make a spell of this magnitude during endgame/infinity war to stop thanos, like bring in another thanos that was good? I think our strange is trapped somewhere by this steven strange from another universe, as seen with events of Loki with things now being changed because our timeline is all fucked.