Royal Rebel's Wall of Death

Card type	Trap
Property	Normal
1 monster gains ATK equal to the Level of a Normal Monster shuffled from the Graveyard x 300.^{[Notes 1]}
Appearances	Yu-Gi-Oh! SEVENS Luke! Explosive Supremacy Legend!!: 005, 006

Other languages

	Name	Lore
Japanese	ロイヤルデモンズ・ウォールオブデス	モンスター１体の攻撃力は墓地から戻した通常モンスターのレベル×３００アップ

Actions: Activates if targeted for an attack; Returns from your Graveyard to your Deck

↑ Despite not being noted on the card, its effect requires an opponent's monster to declare an attack on a face-up monster to activate, the ATK gain lasts until the end of the turn, and both monsters cannot be destroyed by the battle in which it was activated.