Advanced format ruling
Harpie's Pet Baby Dragon
Card effect (current official text)This card gains effects based on the number of "Harpie" monsters you control, except "Harpie's Pet Baby Dragon".
● 1 or more: Your opponent cannot target "Harpie" monsters you control for attacks, except "Harpie's Pet Baby Dragon".
● 2 or more: Double the original ATK and DEF of this card.
● 3 or more: Once per turn: You can target 1 card your opponent controls; destroy that target.
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.