Tomb raiders, since ancient time have used tools(Tomb Raider Magic Tools) in order to attack tombs and pilfer treasures. While initially there was a stalemate between tomb raiders and gravekeepers this was broken when a tomb raider was able to harness the power of the Xia Heart. Since this moment raiders have been unstoppable the harsh defenses of the grave keepers have fallen one after another to the intrusion of the raiders.
Despite the advantage as well as high success in defeating tomb bosses they are still unable to enter level 0. The latest incarnations of the tomb raiders have found a way to transport average consciousness into the game in order to use mass quantity of individuals to slowly defeat each boss.
They have recently managed to break into the last ten floors, in order to gain greater battle gear, to conquer level 0.