Board Thread:Off Topic/@comment-27144409-20180806132759/@comment-29684190-20190720194854

Could a barnacle-ish Grimm work? A bone shell thing that opens up and attacks you with tentacles if you get close. Usually passive so plants would grow over it. A person could mistake it for a rock until it's too late. Sort of like a Grimm mine.

Would an immovable Grimm even work? And if not, how about if it moves really slowly around I guess like a snail.