Crackjaw

Crackjaw is a bizarre fantastical creature that according to stories has the ability to rebound any weapon and change its shape drastically. It appears nowhere in the game and is implied to be nothing but a hoax.

During Deadliest Catch, Linza mentions that at one point of time she traveled into the Wilderness with her friends to look for the fabled beast. She was excited to see how the weapons and armor she had made for them fared for the creatures skin, which she theorized to to be incredibly flexible yet tough. However, she and her friends were ambushed by lowlifes instead, and lead her to conclude that the creature was nothing but a lie.