Voltaic Key + Rings of Brighthearth + Metalworker
Produces: Infinite colorless mana, Infinite untap of artifacts you control, Infinite mana artifacts you control can produce
- Color identity
- C
Prerequisites
2 or more artifacts in hand. Metalworker does not have summoning sickness.
Steps
- Activate Metalworker and reveal 2 artifacts to add {C}{C}{C}{C} to your mana pool.
- Activate Voltaic Key to untap Metalworker.
- Rings of Brighthearth triggers allowing you to copy Voltaic Key's ability and untap Voltaic key with the copy.
- Repeat.