Engineered Explosives [Kaladesh Inventions] SM99 Xyz Materials attached to that

Xyz Materials attached to that target also become Xyz Materials on the Summoned monster

you might as well trade it for something else

your opponent cannot Special Summon monsters

If this Set card is sent from the field to the Graveyard: You can target 1 Level 10 Machine-Type monster in your Graveyard

OR a Spell/Trap Card is activated: Pay half your Life Points

Engineered Explosives [Kaladesh Inventions] SM99 Xyz Materials attached to thatSet: Kaladesh Inventions Type: Artifact Rarity: 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.