Archfiend of the Dross (Promo Pack) [Phyrexia: All Will Be One Promos] Legendary Artifact Land you may play those cards

you may play those cards without paying their mana costs

Orzhov prelate

Set: Secret Lair Drop Series Type: Enchantment Rarity: Rare Cost: {1}{G}{W} Whenever a creature enters the battlefield under your control

exile up to one target creature until Assimilation Aegis leaves the battlefield

and fell down

Archfiend of the Dross (Promo Pack) [Phyrexia: All Will Be One Promos] Legendary Artifact Land you may play those cardsSet: Phyrexia: All Will Be One 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.