Aether Vial [Darksteel] Conspiracy Whenever Infernal Medusa becomes blocked

Whenever Infernal Medusa becomes blocked by a non-Wall creature

Set: Pro Tour Promos Type: Legendary Creature — Dragon Rarity: Rare Cost: {3}{G}{W}{U} Flying

then sacrifices all creatures they control

Set: Eldritch Moon Prerelease Promos Type: Creature — Eldrazi Horror Rarity: Rare Cost: {3} You may cast Eternal Scourge from exile

Aether Vial [Darksteel] Conspiracy Whenever Infernal Medusa becomes blockedSet: Darksteel Type: Artifact Rarity: Uncommon Cost: {1} At the beginning of your upkeep, you may put a charge counter on Aether Vial. {T}: You may put a creature card with converted mana cost equal to the number of charge counters on Aether Vial from your hand onto the battlefield.