Stellarknight Constellar Diamond [SECE-EN051] Ultra Rare Savage Strike it gains 400 ATK during

it gains 400 ATK during the Damage Step only

Set: Duelist Saga Card type: Effect Monster Rarity: Ultra Rare Attack: 100 Defense: 100 Once per turn

Once per turn: You can discard up to 2 cards

but change its ATK to 0

Stellarknight Constellar Diamond [SECE-EN051] Ultra Rare Savage Strike it gains 400 ATK duringSet: Secrets of Eternity Card type: Xyz Effect Monster Rarity: Ultra Rare Attack: 2700 Defense: 2000 3 or more Level 5 LIGHT monsters During your Main Phase 2, you can also Xyz Summon this card by using a "tellarknight" Xyz Monster you control as the Xyz Material, except "Stellarknight Constellar Diamond". (Xyz Materials attached to that monster also become Xyz Materials on this card.) While this card has Xyz Material, neither player can send cards