Combustible Gearhulk [Kaladesh Inventions] Aura Exile a creature you control:

Exile a creature you control: Put a storage counter on City of Shadows

Volcanic Eruption deals damage to each creature and each player equal to the number of Mountains put into a graveyard this way

if it had no -1/-1 counters on it

who did in Unkful

Combustible Gearhulk [Kaladesh Inventions] Aura Exile a creature you control:Set: Kaladesh Inventions Type: Artifact Creature Construct Rarity: Mythic Cost: {4}{R}{R} First strike When Combustible Gearhulk enters the battlefield, target opponent may have you draw three cards. If the player doesn't, you mill three cards, then Combustible Gearhulk deals damage to that player equal to the total converted mana cost of those cards.