Blue Sun's Zenith (Japanese) [Strixhaven: Mystical Archive] Dragons of Tarkir Prerelease Promos while it has an Xyz

while it has an Xyz Material attached that was originally Spellcaster-Type

Set: World Championship Decks 1998 Type: Instant Rarity: Rare Cost: {R} As an additional cost to cast this spell

then is discarded

Set: Dark Revelation Volume 4 Card type: Effect Monster Rarity: Rare Attack: 1200 Defense: 600 This card gains effects based on the number of "Harpie" monsters you control

Set: Battlebond Type: Creature — Demon Rarity: Mythic Cost: {6}{B}{B} Flying

Blue Sun's Zenith (Japanese) [Strixhaven: Mystical Archive] Dragons of Tarkir Prerelease Promos while it has an XyzSet: Strixhaven: Mystical Archive Type: Instant Rarity: Mythic Cost: {X}{U}{U}{U} Target player draws X cards. Shuffle Blue Sun's Zenith into its owner's library.