Color Identity: U, R, W

Prerequisites

  1.  
    Karn's Temporal Sundering
    Karn's Temporal Sundering     in exile.
  2.  All other permanents on the battlefield.
  3. Narset, Enlightened Master
    Narset     does not have summoning sickness.
  4. An opponent is unable to block and kill
    Narset, Enlightened Master
    Narset    .
  5. You have at least three other cards in exile.

Steps

  1. Activate
    Mirror of Fate
    Mirror of Fate     by tapping and sacrificing it.
  2. Holding priority, activate
    Scrabbling Claws
    Scrabbling Claws     by tapping it, causing you to exile
    Mirror of Fate
    Mirror of Fate     from your graveyard.
  3. Resolve the
    Mirror of Fate
    Mirror of Fate     ability, choosing itself,
    Karn's Temporal Sundering
    Karn's Temporal Sundering     and three to five other cards, then exiling your library and putting the chosen cards on top, ensuring
    Karn's Temporal Sundering
    Karn's Temporal Sundering     and
    Mirror of Fate
    Mirror of Fate     are the topmost cards.
  4. Declare
    Narset, Enlightened Master
    Narset     as an attacker.
  5. Narset, Enlightened Master
    Narset     triggers, exiling the top four cards of your library and allowing you to cast them from exile this turn without paying their mana costs.
  6. Move to your postcombat main phase.
  7. Cast
    Karn's Temporal Sundering
    Karn's Temporal Sundering     from exile without paying its mana cost, causing you to take an extra turn after this one and exile
    Karn's Temporal Sundering
    Karn's Temporal Sundering    .
  8. Cast
    Mirror of Fate
    Mirror of Fate     from exile without paying its mana cost.
  9. Repeat each turn.

Results

  1. Infinite turns.

Metadata

  1. In 8 decks according to EDHREC.
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