Advanced format ruling
Curse of Aging
Card effect (current official text)Discard 1 card from your hand. Decrease the ATK and DEF of all monsters on your opponent's side of the field by 500 points until the end of the turn this card is activated.
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.