Goat format ruling
Ring of Destruction
Card effect (current official text)During your opponent's turn: Target 1 face-up monster your opponent controls whose ATK is less than or equal to their LP; destroy that face-up monster, and if you do, take damage equal to its original ATK, then inflict damage to your opponent, equal to the damage you took. You can only activate 1 "Ring of Destruction" per turn.
Rulings
- You cannot activate Ring of Destruction during the Damage Step.
- Ring of Destruction inflicts damage based on the current (total) ATK value, NOT the original ATK.
- This card targets a monster.
- If you chain Ring of Destruction to Magic Cylinder, Magic Cylinder’s effect disappears because the monster is no longer there (so Magic Cylinder inflicts no damage).
- If a player Tributes Witch of the Black Forest for Summoned Skull, you can chain Ring of Destruction to the effect of Witch of the Black Forest, in order to destroy Summoned Skull. If this reduces the player’s LP to zero, then they cannot use Witch of the Black Forest’s effect (to retrieve a 5th Exodia piece, for example).If you chain Ring of Destruction to The Flute of Summoning Dragon and destroy Lord of D., The Flute of Summoning Dragon's effect disappears and the Dragons are not Summoned.
- If you chain Ring of Destruction to Monster Recovery, and destroy the monster, the effect of Monster Recovery disappears.
- If you chain Ring of Destruction to Chain Destruction, because the monster was already summoned, the effect of Chain Destruction resolves normally.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Goat forum — sourced change requests get reviewed.