Stardust Sifr Divine Dragon [SHVI-EN096] Ultra Rare Dragons of Tarkir Promos Set: The List Type: Creature

Set: The List Type: Creature — Phyrexian Horror Rarity: Mythic Cost: {B}{B}{B}{B} Trample

Creatures it was blocking that had become blocked by only Ydwen Efreet this combat become unblocked

but how could that be

Cannot be Special Summoned

Stardust Sifr Divine Dragon [SHVI-EN096] Ultra Rare Dragons of Tarkir Promos Set: The List Type: CreatureSet: Shining Victories Card type: Synchro Effect Monster Rarity: Ultra Rare Attack: 4000 Defense: 4000 1 Tuner Synchro Monster + 2 or more non Tuner Synchro Monsters Must be Synchro Summoned and cannot be Special Summoned by other ways. The first time each card you control would be destroyed each turn, by battle or card effect, it is not destroyed. Once per turn, during either player's turn, when your opponent activates a monster effect: You can