Coalstoke Gearhulk [Aetherdrift Prerelease Promos] Token Enchantment or sorcery spell from among

or sorcery spell from among cards exiled with Skyway Robber without paying its mana cost

Sacrifice another artifact: Search your library for an artifact card with mana value equal to 1 plus the sacrificed artifact's mana value

Controlling it is another matter

Soldier creatures you control get +1/+2

Set: Commander 2018 Type: Creature — Avatar Rarity: Mythic Cost: {4}{W}{W}{W} Serra Avatar's power and toughness are each equal to your life total

Coalstoke Gearhulk [Aetherdrift Prerelease Promos] Token Enchantment or sorcery spell from amongSet: Aetherdrift Prerelease Promos Type: Artifact Creature Construct Rarity: Mythic Cost: {1}{B}{B}{R}{R} Menace, deathtouch When this creature enters, put target creature card with mana value 4 or less from a graveyard onto the battlefield under your control with a finality counter on it. That creature gains menace, deathtouch, and haste. At the beginning of your next end step, exile that creature.