← Back to GrimoireDoubling Cube + Voltaic Key + Rings of Brighthearth

Infinite mana artifacts you control can produceInfinite mana permanents you control can produceInfinite untap of artifacts you control
How it works
- Float 10 mana in your mana pool.
- Activate Doubling Cube by paying 3 and tapping it, causing you to add 7.
- Activate Voltaic Key by paying 1 and tapping it, targeting Doubling Cube.
- Rings of Brighthearth triggers, causing you to pay 2 to copy Voltaic Key's ability, targeting Voltaic Key.
- Resolve both Voltaic Key abilities, untapping Voltaic Key and Doubling Cube.
- Repeat from step 2.
Legal in:CommanderLegacyModernOathbreakerPredhVintage