The Phantom Knights of Cursed Javelin

[ Warrior / Xyz / Effect ] 2 Level 2 monsters You can detach 1 material from this card, then target 1 face-up monster your opponent controls; until the end of this turn, change its ATK to 0, also negate its effects. This is a Quick Effect if this card has a "The Phantom Knights" card as material. You can only use this effect of "The Phantom Knights of Cursed Javelin" once per turn. ATK/ 1600 DEF/ 0