Jack's Knight [LCYW-EN016] Ultra Rare Champion Pack 4 your opponent cannot select monsters

your opponent cannot select monsters on your side of the field as attack targets if they include "Harpie" in their card names (other than "Harpie's Pet Baby Dragon" and "Harpie's Brother")

you can activate this card from your hand

if this card destroys an opponent's monster by battle: You can detach 1 Xyz Material from this card

Negate the effect(s) of that monster until the End Phase

Set: Shadows in Valhalla Card type: Effect Monster Rarity: Secret Rare Attack: 1000 Defense: 1800 (Quick Effect): You can send this card from your hand to the GY

Jack's Knight [LCYW-EN016] Ultra Rare Champion Pack 4 your opponent cannot select monstersSet: Legendary Collection 3: Yugi's World Card type: Normal Monster Rarity: Ultra Rare Attack: 1900 Defense: 1000 A strong master swordsman. His loyalty is to justice, his duty to protect the weak.