Well that goes to show his Akechi could have used it in Sae's palace, but that would have drawn suspicion anyway, since you can't be both human and a persona user back home.

"Except likely that robot Akechi. Pretty sure my lack of a heartbeat or pulse will give me away. If not being ice cold."

That and likely that fae version of them he read about on Raven's board. Oh and the Ken that's been having them train. Otherwise yeah Wild has a point.