D&D and pretty much every game with trolls, they typically have regeneration in some way or another (cut off an arm, another will grow out in a few hours). I just Googled about it, and it seems it comes from D&D who also took it from Paul Anderson's "Three Hearts and Three Lions" (1961), I wonder if he made it up or if he got it from somewhere else.
Yeah, this is something I didn't think about. Trolls pretty much across the board typically have some sort of health regeneration. I looked it up in the books I bought from the list Paradox recommended, and I have not seen anything in regards to a self-healing factor. Now I really am curious where that particular trope came from.
EDIT: Thankfully elves are far easier to kill than trolls, across the board, because they're so fragile and pathetic. I'm liking trolls so far for the possibility of mass elf-slaughter.
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