Buster Blader, the Destruction Swordmaster

 This card's name becomes "Buster Blader" while on the field or in the Graveyard. If an opponent's monster(s) is destroyed by battle or card effect and sent to the Graveyard: You can target 1 of those monsters; equip it to this card. Once per turn: You can send 1 monster equipped to this card to the Graveyard; destroy all monsters your opponent controls with the same Type as the sent monster's.