High Tide + Voltaic Key Combos

1 known combo featuring both cards in Commander

Infinite mana artifacts you control can produce Infinite mana lands you control can produce Infinite untap of artifacts you control Infinite untap of lands you control

Combo 1 with Rings of Brighthearth + Candelabra of Tawnos

Also requires: Rings of Brighthearth Rings of Brighthearth Candelabra of Tawnos Candelabra of Tawnos
Results: Infinite mana artifacts you control can produce · Infinite mana lands you control can produce · Infinite untap of artifacts you control · Infinite untap of lands you control
Steps
  1. Cast High Tide by paying {U}, causing all Islands to add an additional {U} when they are tapped for mana this turn.
  2. Activate two Islands you control by tapping them, adding {U}{U}{U}{U}.
  3. Activate Candelabra of Tawnos by paying {2} and tapping it.
  4. Rings of Brighthearth triggers, causing you to pay {2} to copy Candelabra of Tawnos' ability.
  5. Resolve the first Candelabra of Tawnos ability, untapping the two Islands.
  6. Activate two Islands you control by tapping them, adding {U}{U}{U}{U}.
  7. Resolve the second Candelabra of Tawnos ability, untapping the two Islands.
  8. Activate Voltaic Key by paying {1} and tapping it.
  9. Rings of Brighthearth triggers, causing you to pay {2} to copy Voltaic Key's ability.
  10. Resolve both Voltaic Key abilities, untapping Voltaic Key and Candelabra of Tawnos.
  11. Repeat from step 2.
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