Aether Refinery [Modern Horizons 3 Commander]Set: Modern Horizons 3 Commander Type: Artifact Rarity: Rare Cost: {4}{R}{R} If you would get one or more {E}, you get twice that many instead. {T}: You get {E}, then you may pay one or more {E}. If you do, create an X X black Aetherborn creature token, where X is the amount of {E} paid this way. Avaati Vya's invention stabilized raw aether, but even she didn't know it would also create life.