Tengu format ruling
Nightmare Wheel
Card effect (current official text)Activate this card by targeting 1 monster your opponent controls; it cannot attack or change its battle position. When it leaves the field, destroy this card. Once per turn, during your Standby Phase: Inflict 500 damage to your opponent. That monster must be on the field to activate and to resolve this effect.
Rulings
- You can target a face-down monster for Nightmare Wheel.
- If you activate Nightmare Wheel during the Battle Step and target a monster that is attacking, the attack stops.
- Nightmare Wheel targets. You select the monster when Nightmare Wheel is activated.
- Nightmare Wheel is NOT destroyed if the monster is flipped face-down. Nightmare Wheel continues to target the monster, inflict damage, and prevent the monster from attacking or changing battle position.
- If a face-down monster targeted by the effect of "Nightmare Wheel" is rearranged by the effect of "Wandering Mummy" or "Shifting Shadows", the monster’s controller must honestly announce which monster is the target of "Nightmare Wheel".
- The effect of Nightmare Wheel will be negated by Royal Decree, so you can attack or change the battle position of the monster. Also, if Royal Decree is active, and the monster is removed from the field, Nightmare Wheel remains on the field meaninglessly because its text that would destroy it is negated. If Royal Decree is later destroyed, the effects of Nightmare Wheel are not applied (such as the 500 damage) if there is no monster being targeted by Nightmare Wheel.
- The effect of Nightmare Wheel is still applied if the targeted monster changes sides.
- If the monster targeted by Nightmare Wheel becomes equipped to Relinquished, then Nightmare Wheel is destroyed.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Tengu forum — sourced change requests get reviewed.