Engineered Explosives [Modern Masters] Human Assassin but my host would casually

but my host would casually push it down before I could make out what it was

Set: Kaladesh Inventions Type: Artifact Rarity: Mythic Cost: {3} Lands you control have "{T}: Add one mana of any color

Set: Judge Gift Cards 2013 Type: Creature — Incarnation Rarity: Rare Cost: {4}{G} At the beginning of your upkeep

really big

Engineered Explosives [Modern Masters] Human Assassin but my host would casuallySet: Modern 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.