Blightsteel Colossus (Toppers) [Double Masters Extended Art] Base Set Unlimited Set: Mystery Booster Type: Instant

Set: Mystery Booster Type: Instant Rarity: Rare Cost: {3}{U}{U} You may exile a blue card from your hand rather than pay this spell's mana cost

If that card's converted mana cost is less than or equal to the sacrificed artifact's converted mana cost

goblin sergeant

Set: Battle for Zendikar Type: Legendary Creature — Eldrazi Rarity: Mythic Cost: {10} When you cast this spell

Level 5 or higher monsters cannot be Special Summoned

Blightsteel Colossus (Toppers) [Double Masters Extended Art] Base Set Unlimited Set: Mystery Booster Type: InstantSet: Double Masters Extended Art Type: Artifact Creature Golem Rarity: Mythic Cost: {12} Trample, infect, indestructible If Blightsteel Colossus would be put into a graveyard from anywhere, reveal Blightsteel Colossus and shuffle it into its owner's library instead.