These massive behemoths in Borderlands 2 live in the crystal caves underneath Pandora’s surface, lazily snacking on the Eridium crystals found underground. While they are big, lumbering, and slow, Crystalisks are ridiculously resilient. Their only known “weak” points are the patches of crystalline armor on their massive feet. One could attempt to shatter the crystals to take the beast down—if they don’t get stomped to death first.