Equipment represent weapons, armor, and other useful items on the battlefield, but you must have creatures to wield them to their full advantage. The insidious Phyrexians have solved this problem. When an Equipment with living weapon enters the battlefield, a 0/0 black Germ creature token comes with it, then the Equipment (which boosts the token’s toughness above 0) attaches itself to the Germ.
Other than creating a creature to attach itself to, an Equipment with living weapon behaves just like other Equipment. It has an equip cost that you can pay to attach it to another creature you control. However, doing so will likely send the Germ to the graveyard.
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