Aether Herder
Creature — Elf Artificer Druid, {3}{G}
Oracle Text
When this creature enters, you get {E}{E} (two energy counters).
Whenever this creature attacks, you may pay {E}{E}. If you do, create a 1/1 colorless Servo artifact creature token.
Creature — Elf Artificer Druid, {3}{G}