Tengu format ruling
Iron Chain Dragon
Card effect (current official text)1 Tuner + 1 or more non-Tuner monsters
You can remove from play all "Iron Chain" monsters from your Graveyard to have this card gain 200 ATK for each card removed, until the End Phase. When this card inflicts Battle Damage to your opponent, send the top 3 cards of your opponent's Deck to the Graveyard.
Rulings
No rulings currently available.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Tengu forum — sourced change requests get reviewed.