Emeria, the Sky Ruin [The List] Tails You Lose Set: EX: Crystal Guardians Type:

Set: EX: Crystal Guardians Type: Lightning Rarity: Rare Retreat cost: Colorless

Set: Team Rocket Unlimited Type: Water Rarity: Rare Retreat cost: Colorless

Then if a graveyard has twenty or more cards in it

Set: Ikoria: Lair of Behemoths Prerelease Promos Type: Legendary Artifact Rarity: Rare Cost: {1} Whenever a creature you control leaves the battlefield

Set: Unlimited Edition Type: Creature — Demon Rarity: Rare Cost: {4}{B}{B}{B} Flying

Emeria, the Sky Ruin [The List] Tails You Lose Set: EX: Crystal Guardians Type:Set: The List Type: Land Rarity: Rare Emeria, the Sky Ruin enters the battlefield tapped. At the beginning of your upkeep, if you control seven or more Plains, you may return target creature card from your graveyard to the battlefield. {T}: Add {W}.