Advanced format ruling
Decoy Dragon
Card effect (current official text)If this card is targeted for an attack: Target 1 Level 7 or higher Dragon-Type monster in your Graveyard; Special Summon it, and if you do, change the attack target to it and perform damage calculation.
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.