Engineered Explosives [Double Masters] Psychic Set: Arabian Nights Type: Creature

Set: Arabian Nights Type: Creature — Beast Rarity: Rare Cost: {3}{B} As long as Guardian Beast is untapped

Noncreature spells with {X} in their mana costs can't be cast

Comeuppance deals that much damage to the source's controller

Set: Professor Program Promos Type: Grass Rarity: Promo

Set: Hour of Devastation Prerelease Promos Type: Legendary Creature — God Rarity: Mythic Cost: {4}{U}{R} Flying

Engineered Explosives [Double Masters] Psychic Set: Arabian Nights Type: CreatureSet: 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.