Raviel, Lord of Phantasms - Shimmering Scraper [MP21-EN248] Prismatic Secret Rare

Set: 2021 Tin of Ancient Battles Card type: Effect Monster Rarity: Prismatic Secret Rare Attack: 4000 Defense: 4000 Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by Tributing 3 monsters. You can only use each of the following effects of "Raviel, Lord of Phantasms - Shimmering Scraper" once per turn. • (Quick Effect): You can discard this card and target 1 "Raviel, Lord of Phantasms" you control; for the rest of this turn, its ATK becomes double its current ATK, also it can attack all monsters your opponent controls once each. • If this card is in your GY: You can Tribute 1 monster; add this card to your hand.