Eckhardt's Glove
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Eckhardt's Glove is an artefact that is obtained once Pieter Van Eckhardt has been defeated. The Glove was used as the primary weapon during the Monstrum killings. Lara needed the glove to wield The Sanglyph so that she could gain access to The Sleeper and destroy it.
Powers
The glove can tear through flesh and kill. It is also needed to wield The Sanglyph which was created by Eckhardt.