Color Identity: W, U, B

Prerequisites

  1.  All permanents on the battlefield.

Steps

  1. At the beginning of your upkeep,
    Thopter Spy Network
    Thopter Spy Network    's first ability triggers, creating a 1/1 Thopter artifact creature token.
  2. At the beginning of your end step,
    Soulherder
    Soulherder    's second ability triggers, blinking
    Myr Battlesphere
    Myr Battlesphere    .
  3. When
    Myr Battlesphere
    Myr Battlesphere     enters the battlefield, it and
    Soulherder
    Soulherder    's first abilities trigger.
  4. Resolve the
    Soulherder
    Soulherder     trigger, putting a +1/+1 counter on it.
  5. Resolve the
    Myr Battlesphere
    Myr Battlesphere     trigger, creating four 1/1 Myr artifact creature tokens.
  6. Activate
    Time Sieve
    Time Sieve     by tapping it, sacrificing the Thopter and the four Myrs, causing you to take an extra turn after this one.
  7. Repeat each turn.

Results

  1. Infinite turns.

Metadata

  1. In 61 decks according to EDHREC.
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