I have the Jim LS (it's what I've decided to call it) in my territory. My opponent exchanges for it with the Switch LS. Does the opponent get to reveal a hand? If I exchange back, do I reveal a hand? This came up in a friendly game, and I immediately thought that you could do this, based on the wording.
Jim LS:
"If this Lost Soul is put in a territory, you may reveal a hand."
Switch LS:
"If this card is in your territory during your preparation phase, you may exchange it with a Lost Soul in an opponent’s territory (except another copy of this card)."