I'd make Baby Pet Dragon's effects count your Harpies on your field (besides itself) and in your GY. Here's how I'd do the effects: 1+: Gains 300 ATK for each "Harpie Lady" on your Field and in your GY. 3+: Your opponent cannot target other "Harpie" Monsters for attacks. 5+: If destroyed, you can banish 2 "Harpie" Monsters from your GY instead. 7+: Once per turn, pop a card your opponent controls.
I'd make Baby Pet Dragon's effects count your Harpies on your field (besides itself) and in your GY. Here's how I'd do the effects:
1+: Gains 300 ATK for each "Harpie Lady" on your Field and in your GY.
3+: Your opponent cannot target other "Harpie" Monsters for attacks.
5+: If destroyed, you can banish 2 "Harpie" Monsters from your GY instead.
7+: Once per turn, pop a card your opponent controls.