Color Identity: G, U

Prerequisites

  1.  All permanents on the battlefield.
  2. Elder Duid does not have summoning sickness.
  3. ({5} magic symbol)  ({U} magic symbol)  ({G} magic symbol)   each turn available.

Steps

  1. Activate
    Magosi, the Waterveil
    Magosi    's second activated ability by tapping it and paying ({U} magic symbol)  .
  2. Rings of Brighthearth
    Rings of Brighthearth     triggers; choose not to pay for it.
  3. Resolve the
    Magosi, the Waterveil
    Magosi     ability, putting an eon counter on
    Magosi, the Waterveil
    Magosi     and skipping your next turn.
  4. Activate Elder Duid by paying ({3} magic symbol)  ({G} magic symbol)   and tapping it, targeting
    Magosi, the Waterveil
    Magosi    .
  5. Rings of Brighthearth
    Rings of Brighthearth     triggers; choose not to pay for it.
  6. Activate
    Magosi, the Waterveil
    Magosi    's third activated ability by tapping it, removing an eon counter from it, and returning it to your hand.
  7. Rings of Brighthearth
    Rings of Brighthearth     triggers; pay ({2} magic symbol)   and copy the
    Magosi, the Waterveil
    Magosi     ability.
  8. Resolve both copies of the ability, cancelling out your skipped turn and taking an extra turn after this one.
  9. Play
    Magosi, the Waterveil
    Magosi    .
  10. Repeat each turn.

Results

  1. Infinite turns.

Metadata

  1. In 1 deck according to EDHREC.
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