Galvanic Blast [Secret Lair Drop Series] Spider Human Hero Sacrifice HELIOS One: Destroy target

Sacrifice HELIOS One: Destroy target nonland permanent with mana value X

and it's returned from the battlefield to its owner's hand at the beginning of the next end step

Set: War of the Spark Prerelease Promos Type: Legendary Planeswalker — Bolas Rarity: Mythic Cost: {U}{B}{B}{B}{R} Nicol Bolas

the Sky Ruin enters the battlefield tapped

T: Surveil 2

Galvanic Blast [Secret Lair Drop Series] Spider Human Hero Sacrifice HELIOS One: Destroy targetSet: Secret Lair Drop Series Type: Instant Rarity: Uncommon Cost: {R} Galvanic Blast deals 2 damage to any target. Metalcraft Galvanic Blast deals 4 damage instead if you control three or more artifacts. All units, set repulsors to maximum power.