Furnace of Rath [The List] Condition:Heavily Played Whenever Aetherstorm Roc attacks

Whenever Aetherstorm Roc attacks

Set: Modern Masters Type: Artifact Creature — Vedalken Artificer Rarity: Common Cost: {1}{U} Artifact spells you cast cost {1} less to cast

Set: Mystery Booster Type: Instant Rarity: Uncommon Cost: {1}{R} Price of Progress deals damage to each player equal to twice the number of nonbasic lands that player controls

Set: Aether Revolt Type: Instant Rarity: Uncommon Cost: {3}{U} Exile up to two target creatures you control

The black horses were filled with madness

Furnace of Rath [The List] Condition:Heavily Played Whenever Aetherstorm Roc attacksSet: The List Type: Enchantment Rarity: Rare Cost: {1}{R}{R}{R} Double all damage assigned to any creature or player.