Engineered Explosives [Ultimate Box Topper] Grand Prix Promos Some people say that the

Some people say that the world is round

Set: Rivals of Ixalan Type: Legendary Artifact Mythic Cost: {6} Players can't activate planeswalkers' loyalty abilities

any time you could activate a mana ability

Reverse Type: Legendary Enchantment Whenever an opponent casts their first spell each turn

Engineered Explosives [Ultimate Box Topper] Grand Prix Promos Some people say that theSet: 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.