Color Identity: U, B

Prerequisites

  1.  All permanents on the battlefield.

Steps

  1. At the beginning of your end step,
    Conjurer's Closet
    Conjurer's Closet     triggers, blinking
    Myr Battlesphere
    Myr Battlesphere    .
  2. When
    Myr Battlesphere
    Myr Battlesphere     enters the battlefield, its first ability triggers twice, creating eight 1/1 Myr artifact creature tokens.
  3. Activate
    Time Sieve
    Time Sieve     by tapping it and sacrificing five Myrs, causing you to take an extra turn after this one.
  4. Repeat each turn.

Results

  1. Infinite turns.

Metadata

  1. In 229 decks according to EDHREC.
footer