Harpie's Pet Phantasmal Dragon [MAGO-EN132] Rare 2015 Mega-Tins when it attacks your opponent's

when it attacks your opponent's only monster

but when it does so using this effect

increase the ATK of this card by 300 points for each card removed from play

Set: Dark Beginning 2 Card type: Effect Monster Rarity: Rare Attack: 700 Defense: 600 FLIP: Both you and your opponent discard all cards in your hands

Harpie's Pet Phantasmal Dragon [MAGO-EN132] Rare 2015 Mega-Tins when it attacks your opponent'sSet: Maximum Gold Card type: Xyz Effect Monster Rarity: Rare Attack: 2000 Defense: 2500 3 Level 4 WIND monsters This card's effects can only be applied resolved while it has Xyz Material. This card can attack your opponent directly. Your opponent cannot target any "Harpie" monsters with effects or for attacks. During each of your End Phases: Detach 1 Xyz Material from this card.