IDK, it was already done to him once. If Legion can break free, all bets are off. And of note in AoXM, Nate looks like he first did in Disassembled, before merging with David.
Also, Dani Moonstar, she could create specific illusions with her Mutant powers. Those derived from a target's deepest desires... hmmm...
... just throwin' stuff out there.