Archfiend of the Dross [Phyrexia: All Will Be One Prerelease Promos] JDG002 When Gaea's Blessing is put

When Gaea's Blessing is put into your graveyard from your library

Set: Heroes of the Realm 2018 Type: Legendary Creature — Dragon Angel Rarity: Mythic Cost: {G}{W}{U}{B} Legendary Partner (You can have two commanders if this is one of them

he mastered two

Set: Kaladesh Type: Creature — Human Artificer Rarity: Uncommon Cost: {2}{R} Whenever an artifact enters the battlefield under your control

Set: The Brothers' War: Prerelease Promos Type: Artifact Creature — Beast Rarity: Rare Cost: {5} You may play lands from your graveyard

Archfiend of the Dross [Phyrexia: All Will Be One Prerelease Promos] JDG002 When Gaea's Blessing is putSet: Phyrexia: All Will Be One Prerelease Promos Type: Creature Phyrexian Demon Rarity: Rare Cost: {2}{B}{B} Flying Archfiend of the Dross enters the battlefield with four oil counters on it. At the beginning of your upkeep, remove an oil counter from Archfiend of the Dross. Then if it has no oil counters on it, you lose the game. Whenever a creature an opponent controls dies, its controller loses 2 life.