Supreme King Dragon Dark Rebellion [COTD-EN041] Rare Wyrm if a face-up Dragon-Type monster

if a face-up Dragon-Type monster on the field

the attacking monster's ATK becomes half its current ATK

then target 1 "Nekroz" card in your GY

Set: Shadows in Valhalla Card type: Quick Play Spell Rarity: Secret Rare Discard 1 card

during damage calculation (Quick Effect): You can Tribute 1 monster this card points to

Supreme King Dragon Dark Rebellion [COTD-EN041] Rare Wyrm if a face-up Dragon-Type monsterSet: Code of the Duelist Card type: Xyz Effect Monster Rarity: Rare Attack: 2500 Defense: 2000 2 Level 4 DARK Pendulum Monsters Once per turn, before damage calculation, if this card battles an opponent's monster: You can detach 1 material from this card; until the end of this turn, change the ATK of that face up opponent's monster to 0, and if you do, this card gains ATK equal to the original ATK of that opponent's monster. During the Battle Phase