Advanced format ruling
Iron Chain Snake
Card effect (current official text)During your Main Phase, you can equip this card to 1 face-up monster your opponent controls. That monster loses 800 ATK and DEF. When it is destroyed by battle and sent to the Graveyard, its controller sends cards equal to its Level from the top of their Deck to the Graveyard.
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.