Advanced format ruling
Red-Eyes Zombie Dragon
Card effect (current official text)You can Tribute Summon this card in Attack Position by Tributing 1 Zombie monster. When this card destroys a Zombie monster by battle and sends it to the GY: You can Special Summon that Zombie monster.
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.