Hear me out, I think I found a way. As far as I'm aware, Social Influencing should work just as well, regardless of AP or dimensions or whatever. So, I would recommend
Parahumans. From this, John would get Contessa's Path to Victory, which lets her see and perfectly execute the steps needed to accomplish any task. So, if a thing is theoretically possible, Contessa can do it. This works for persuading people too, so pretty much as long as a character isn't omniscient or some ancient eldritch being with an alien mind, John would be able to persuade them to commit die.
John beats the verse by being a god, Path to Victory can't let you do impossible things