Advanced format ruling
Domino Effect
Card effect (current official text)When a monster your opponent controls is destroyed by battle and sent to the Graveyard, you can send 1 monster you control to the Graveyard to destroy 1 monster your opponent controls.
Current rulings for this card are maintained by Konami.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Advanced forum — sourced change requests get reviewed.