i want the idea that i can befriend them when i have the endo heart and they can help you like following you around or protecting you when getting attacked.
Hell yeah. Also I guess it will also work with modded ghosts, right? (and ofc the mod owners would have to update their mods and that). Also I wonder if you could chat with ghosts who follow you.
or maybe even ask one who heals you to eat you. or to eat them. (would be handy for HC runs when you need to last just a LITTLE longer without starving.)
oh yeah you just let them get you and dont struggle and then you will see a heart icon on the struggle meter and then struggle out to it and that is how you "feed" them
