Unwinding Clock [New Phyrexia] Scourge Set: Guilds of Ravnica Type:

Set: Guilds of Ravnica Type: Enchantment Rarity: Rare Cost: {U}{R} Whenever you cast an instant or sorcery spell

Set: Planechase Type: Artifact Rarity: Uncommon Cost: {3} Whenever Serum Tank or another artifact enters the battlefield

if you cast it from your hand and there are five or more other creatures on the battlefield

destroy target creature with power 4 or greater an opponent controls

you can send 1 card from your hand to the Graveyard to negate the effect

Unwinding Clock [New Phyrexia] Scourge Set: Guilds of Ravnica Type:Set: New Phyrexia Type: Artifact Rarity: Rare Cost: {4} Untap all artifacts you control during each other player's untap step. "The partisans have unearthed a strange artifact. None know its origin, but it gives them hope of a life beyond." Elspeth's journal