Ulamog, the Ceaseless Hunger [Commander Masters] Dorinthea Hero Deck Athreos isn't a creature

Athreos isn't a creature

you may only play cards that are Draconic

"She speaks with the purity of nature and walks with the boldness of the wilds

Set: 30th Anniversary Edition Type: Instant Rarity: Rare Cost: {B} Target spell or permanent becomes black

Set: Skyridge Type: Fire Rarity: Rare Retreat cost: Colorless

Ulamog, the Ceaseless Hunger [Commander Masters] Dorinthea Hero Deck Athreos isn't a creatureSet: Commander Masters Type: Legendary Creature Eldrazi Rarity: Mythic Cost: {10} A force as voracious as time itself. When you cast this spell, exile two target permanents. Indestructible Whenever Ulamog, the Ceaseless Hunger attacks, defending player exiles the top twenty cards of their library.