Corrupted Conscience [Mirrodin Besieged] Duel Decks Anthology Set: Innistrad Type: Instant Common

Set: Innistrad Type: Instant Common Cost: {1}{G} Destroy target artifact or enchantment

It knows how to make the ticking stop

Set: Hour of Devastation Type: Creature — Demon Rare Cost: {4}{B}{B} Flying Apocalypse Demon's power and toughness are each equal to the number of cards in your graveyard

instead prevent all combat damage that would be dealt this turn by creatures your opponents control

if three or more cards were put into your graveyard this turn from anywhere

Corrupted Conscience [Mirrodin Besieged] Duel Decks Anthology Set: Innistrad Type: Instant CommonSet: Mirrodin Besieged Type: Enchantment Aura Uncommon Cost: {3}{U}{U} Enchant creature You control enchanted creature. Enchanted creature has infect. (It deals damage to creatures in the form of 1 1 counters and to players in the form of poison counters.) Karn's creation is now his master.