Energy
Energy concepts like Energy Doubler, Energy Payoff, and Energy Producer.
- Energy DoublerCards that scale energy production by generating {E} from broad triggers on artifacts or permanents you control, like Gonti's Aether Heart and Aetherworks Marvel.
- Energy PayoffCards that spend {E} energy counters to produce effects, like Bristling Hydra's hexproof pump, Whirler Virtuoso's Thopters, and Aetherworks Marvel's free spell.
- Energy ProducerGenerates {E} energy counters via enter-the-battlefield, cast, or combat triggers, like Aether Hub, Attune with Aether, and Glimmer of Genius.