Living Energy

Creative Energy

Creative Energy Collector's Edition

Kaladesh Foil Redemption

Kaladesh Redemption

Era of Innovation

Whenever an artifact or Artificer you control enters, you may pay {1}. If you do, you get {E}{E} (two energy counters).
Pay six {E}, Sacrifice this enchantment: Draw three cards.

Whenever an artifact or Artificer enters the battlefield under your control, you may pay {1}. If you do, you get {E}{E} (two energy counters).
Pay six {E}, Sacrifice Era of Innovation: Draw three cards.

Whenever an artifact or Artificer enters the battlefield under your control, you may pay {1}. If you do, you get {EE} (two energy counters).
Pay {EEEEEE}, Sacrifice Era of Innovation: Draw three cards.