Emeria, the Sky Ruin [The List] Tails You Lose Then if a graveyard has

Then if a graveyard has twenty or more cards in it

Set: Vanguard Series Type: Vanguard Rarity: Rare {3}: Create a 1/1 colorless Sliver creature token

They are the Defenders of Humanity

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

When enchanted creature deals combat damage to a player

Emeria, the Sky Ruin [The List] Tails You Lose Then if a graveyard hasSet: 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}.