Lycanroc GX (155/147) [Sun & Moon: Burning Shadows] AR1 you cannot declare an attack

you cannot declare an attack this turn

and 'Gamma the Magnet Warrior' exist in the Graveyard

Set: Return of the Duelist Card type: Xyz/Effect Monster Rarity: Ghost Rare Attack: 2000 Defense: 2000 2 Level 4 Warrior-Type monsters // Once per turn: You can detach 2 Xyz Materials from this card

Set: Tournament Promotion Cards Era: Hatchyyack Saga Rarity: Promo Game character: Hatchyyack Color: Black Card type: Battle Power: 25000 Combo power: 5000

Lycanroc GX (155/147) [Sun & Moon: Burning Shadows] AR1 you cannot declare an attackSet: Sun & Moon: Burning Shadows Type: Fighting Rarity: Secret Rare Retreat cost: Colorless