Athreos, God of Passage [Journey into Nyx] Fusion Enforcers Set: Amonkhet Invocations Type: Instant

Set: Amonkhet Invocations Type: Instant Rarity: Mythic Cost: {1}{U}{U} Buyback—Discard two cards

or if this card in your possession is destroyed by an opponent's card effect and sent to your Graveyard: You can Special Summon 1 "Gaia The Fierce Knight" monster from your hand

Set: Elemental Energy Card type: Normal Monster Rarity: Ultimate Rare Attack: 1900 Defense: 1000

Set: XY: Ancient Origins Type: Fighting Rarity: Ultra Rare Retreat cost: Colorless

other than "Elemental Hero Neos"

Athreos, God of Passage [Journey into Nyx] Fusion Enforcers Set: Amonkhet Invocations Type: InstantSet: Journey into Nyx Type: Legendary Enchantment Creature God Rarity: Mythic Cost: {1}{W}{B} Indestructible As long as your devotion to white and black is less than seven, Athreos isn't a creature. Whenever another creature you own dies, return it to your hand unless target opponent pays 3 life.