Color Identity: G, W, U, B

Prerequisites

  1.  All permanents on the battlefield.
  2. ({5} magic symbol)   each extra turn available.

Steps

  1. Activate
    Karn, the Great Creator
    Karn    's first loyalty ability by putting two loyalty counters on it, causing
    Ugin's Nexus
    Ugin's Nexus     to become an artifact creature until end of turn.
  2. Activate
    Ashnod's Altar
    Ashnod's Altar     by exiling
    Ugin's Nexus
    Ugin's Nexus    , adding ({C} magic symbol)  ({C} magic symbol)  .
  3. Ugin's Nexus
    Ugin's Nexus     triggers, causing you to take an extra turn after this one.
  4. Activate
    Karn, the Great Creator
    Karn    's second loyalty ability by removing a loyalty counter from it, returning
    Ugin's Nexus
    Ugin's Nexus     from exile to your hand.
  5. Move to your next turn.
  6. Cast
    Ugin's Nexus
    Ugin's Nexus     by paying ({5} magic symbol)  .
  7. Repeat.

Results

  1. Infinite turns.

Metadata

  1. In 0 decks according to EDHREC.
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