Number 16: Shock Master (CT09-EN014) [2012 Collectors Tin]

3 Level 4 monsters
<BR>Once per turn: You can detach 1 Xyz Material from this card to declare a card type (Monster, Spell, or Trap); that type of card (if Spell or Trap) cannot be activated, or (if Monster) cannot activate its effects, until the end of your opponent's next turn.