Engineered Explosives [Double Masters] World Championship Decks 1997 Set: Legends Type: Artifact Rare

Set: Legends Type: Artifact Rare Cost: {3} Legendary creatures don't untap during their controllers' untap steps

"But now I pledge my loyalty to you

Some minds are more open than others

Use this ability only during your upkeep and only once each upkeep

Set: War of the Spark Type: Legendary Planeswalker — Karn Rare Cost: {4} Activated abilities of artifacts your opponents control can't be activated

Engineered Explosives [Double Masters] World Championship Decks 1997 Set: Legends Type: Artifact RareSet: Double Masters Type: Artifact Rarity: Rare Cost: {X} Sunburst (This enters the battlefield with a charge counter on it for each color of mana spent to cast it.) {2}, Sacrifice Engineered Explosives: Destroy each nonland permanent with converted mana cost equal to the number of charge counters on Engineered Explosives.