Engineered Explosives [Double Masters] Weatherlight {1}: Return Oboro

{1}: Return Oboro

Set: World Championship Decks 1999 Type: Legendary Artifact Creature — Golem Rarity: Rare Cost: {5} Whenever Karn

You may reveal an artifact card from among them and put it into your hand

Set: War of the Spark Promos Type: Legendary Planeswalker — Ral Rarity: Rare Cost: {2}{U}{R} Whenever you cast or copy an instant or sorcery spell

Once a guardian of Crovax's estate

Engineered Explosives [Double Masters] Weatherlight {1}: Return OboroSet: 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 mana value equal to the number of charge counters on Engineered Explosives.