ForbiddenHot Red Dragon Archfiend King Calamity
Synchro Effect Monster
Card text
2 Tuners + 1 non-Tuner DARK Dragon Synchro Monster When this card is Synchro Summoned: You can activate this effect; for the rest of this turn, your opponent cannot activate cards or effects on the field. Your opponent cannot activate cards or effects in response to this effect's activation. If this card destroys a monster by battle: Inflict damage to your opponent equal to that monster's original ATK. If this card in its owner's possession is destroyed by an opponent's card: You can target 1 Level 8 or lower DARK Dragon Synchro Monster in your GY; Special Summon it.
- Attribute
- DARK
- Type
- Dragon
- Level
- 12
- ATK
- 4000
- DEF
- 3500
Explained
A Level 12 Synchro. When Synchro Summoned, your opponent can't activate cards or field effects for the rest of the turn, and can't respond to that effect. It burns for a destroyed monster's original ATK, and revives a Level 8 or lower DARK Dragon Synchro if your opponent destroys it.
It can't be used in Advanced Format: it's Forbidden in the TCG as of the Sept 21, 2026 list.
- Putting it in an Advanced Format deck. It's Forbidden.
- Trying the lock when something else happened after its Synchro Summon.
How it works
Status: Forbidden in the TCG (Sept 21, 2026 list), so it can’t be used in Advanced Format.
Materials: 2 Tuners + 1 non-Tuner DARK Dragon Synchro Monster.
- When Synchro Summoned: For the rest of this turn, your opponent can’t activate cards or effects on the field. Your opponent can’t respond to this effect’s activation.
- If it destroys a monster by battle (mandatory): Inflict damage equal to that monster’s original ATK.
- If destroyed by an opponent’s card while in its owner’s possession: Target 1 Level 8 or lower DARK Dragon Synchro Monster in your GY; Special Summon it.
Rulings in plain English
Lock timing: Only right after the Synchro Summon. If more processing follows, such as a Synchro Summon from an effect activated as Chain Link 2 or later, you can’t activate it.
No response: That part isn’t part of the resolution, so your opponent can’t respond even if this card’s effects are negated.
Lock scope: It applies to your opponent as a player, so even cards unaffected by monster effects can’t activate. They also can’t activate Spells/Traps from the hand or place Pendulum Monsters in the Pendulum Zone.
Burn: Activates at the end of the Damage Step, only if this card is still in the Monster Zone.
Revive: Activates from the GY or face-up banishment. It works wherever it was destroyed, even face-down, and can be used in the Damage Step.
