Crumble [Fourth Edition (Foreign Black Border)] Djinn Set: Coldsnap Type: Legendary Creature

Set: Coldsnap Type: Legendary Creature — Human Artificer Rarity: Rare Cost: {3}{U} {T}: Target artifact creature's controller sacrifices it

Set: Conspiracy: Take the Crown Type: Creature — Human Rogue Mutant Rarity: Rare Cost: {3}{U}{U} When Keeper of Keys enters the battlefield

This explains why the goblins remain unaffected

(They can deal excess combat damage to the player or planeswalker they're attacking

Set: Legends Type: Enchantment Rarity: Uncommon Cost: {3}{W} Whenever a player casts an enchantment spell

Crumble [Fourth Edition (Foreign Black Border)] Djinn Set: Coldsnap Type: Legendary CreatureSet: Fourth Edition (Foreign Black Border) Type: Instant Rarity: Uncommon Cost: {G} Destroy target artifact. It can't be regenerated. That artifact's controller gains life equal to its mana value.