ForbiddenNumber 16: Shock Master
Xyz Effect Monster
Card text
3 Level 4 monsters Once per turn: You can detach 1 Xyz Material from this card to declare 1 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.
- Attribute
- LIGHT
- Type
- Fairy
- Rank
- 4
- ATK
- 2300
- DEF
- 1600
Explained
A Rank 4 Xyz. Once per turn, detach 1 to declare Monster, Spell or Trap. Until the end of your opponent's next turn, Spells or Traps of that type can't be activated, or Monsters can't activate their effects.
It can't be used in Advanced Format. It's Forbidden in the TCG.
- Thinking a Spell or Trap declaration stops effects of cards already face-up. It only stops activating the cards.
Status: Forbidden in the TCG (Sept 21, 2026 list), so it can’t be used in Advanced Format.
How it works
Materials: 3 Level 4 monsters.
Ignition (once per turn): Detach 1 material to declare 1 card type (Monster, Spell or Trap). Until the end of your opponent’s next turn, that type of card can’t be activated (Spell or Trap), or can’t activate its effects (Monster).
Rulings in plain English
Declare: You choose the type when you activate. Detaching is the cost.
Spell or Trap: Stops activating the cards, but effects of Spell or Trap cards can still be activated.