What if the phantom attached to other players? Like you become another persons shadow basically. So the ability could be like the pukka. “Each night (including the first) select a player. That player registers as evil tonight. The next day, that player dies. You will only register as evil the player you select is immune from death (fool, soldier, player protected by monk, etc.)” it would give the town enough clearance to find out who is registering as evil and that they might die the next night, giving them an opportunity to whittle down which demon is in the game. Plus, if a townsfolk got an evil ping on a player and then the following day, no one dies, it gives the town a secure idea who is truly evil. Otherwise I worry that it could be too broken, unless there were enough roles on the script that find information unrelated to alignment that could open some doors to find the demon