how to create one?

how to make a potion restore the player character. The player himself could restore the player character.

Don't kill it in the first place.
You could of course have an auto conti, on the char once the char is created, and make it never end.
Personally, I'd take my time to make Grow = 3 characters not require a resurrection rune, which means quite a bit of work in the ps_game.exe.

#moved

#closed