User blog comment:UglyTurtle/Justice League of Equestria RolePlay Blog Part II/@comment-5837525-20141103203358

Apparently, there have been numerous attempts to destroy the amulet: fire, ice, concussive blasts, Zapp's lightning, Saddle Rager's brute strength... But all of them failed. For some reason, the amulet's resistant to every force in Equestria.