Engineered Explosives [Kaladesh Inventions] XY127 You can only use this

You can only use this effect of "Cyber Dragon Sieger" once per turn

Set: XY: Trainer Kit 2 - Latias Type: Grass Rarity: Promo

that monster gains 800 ATK and DEF until the end of your opponent's turn

you can discard 1 card from your hand to return Spell/Trap Cards from the field to the hand equal to the number of face-up Tuner monsters on the field

Engineered Explosives [Kaladesh Inventions] XY127 You can only use thisSet: 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 mana value equal to the number of charge counters on Engineered Explosives.