Engineered Explosives [Ultimate Box Topper] Oathbreaker especially when combined with a

especially when combined with a special chant: "Hushhh

Set: Grand Prix Promos Type: Creature — Kor Artificer Rare Cost: {1}{W} When Stoneforge Mystic enters the battlefield

" —Kamahl

Set: Seventh Edition Type: Artifact Rare Cost: {4} At the beginning of each player's draw step

Engineered Explosives [Ultimate Box Topper] Oathbreaker especially when combined with aSet: Ultimate Box Topper Type: Artifact Mythic 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.