Master Chief, John-117

Haste When Master Chief enters, search your library for an equipment card with mana value equal to or less than the number of times you’ve cast your commander from the command zone this game, put it onto the battlefield, and shuffle. Whenever a creature dealt damage by Master Chief this turn dies, you may attach an equipment that was attached to that creature to Master Chief by paying its equip cost. You may spend mana as if it were mana of any color to pay this cost. Equip abilities you activate that target Master Chief cost {2} less to activate.