Thassa's Oracle (Extended Art) [Theros Beyond Death] Elf Archer Special Summon 3 Phantasmal Martyr

Special Summon 3 Phantasmal Martyr Tokens (Fiend-Type/DARK/Level 1/ATK 0/DEF 0) in Attack Position on your side of the field

If a creature an opponent controls attacks

Set: Kaladesh Prerelease Promos Type: Enchantment Rarity: Mythic Cost: {3}{U}{U} Whenever you cast an instant or sorcery spell

Set: War of the Spark Promos Type: Legendary Planeswalker — Kiora Rarity: Uncommon Cost: {2}{G/U} Whenever a creature with power 4 or greater enters the battlefield under your control

You can only Special Summon "Marincess Sea Horse" once per turn this way

Thassa's Oracle (Extended Art) [Theros Beyond Death] Elf Archer Special Summon 3 Phantasmal MartyrSet: Theros Beyond Death Type: Creature Merfolk Wizard Rarity: Rare Cost: {U}{U} When Thassa's Oracle enters the battlefield, look at the top X cards of your library, where X is your devotion to blue. Put up to one of them on top of your library and the rest on the bottom of your library in a random order. If X is greater than or equal to the number of cards in your library, you win the game. (Each {U} in the mana costs of permanents you control