Color Identity: U

Prerequisites

  1.  
    Brainstorm
    Brainstorm     in exile (
    Brainstorm
    Brainstorm     exiled by
    Isochron Scepter
    Isochron Scepter    ).
  2.  
    Temporal Manipulation
    Temporal Manipulation     in hand.
  3.  
    God-Eternal Kefnet
    God-Eternal Kefnet     and
    Isochron Scepter
    Isochron Scepter     on the battlefield.
  4. ({2} magic symbol)   plus ({3} magic symbol)  ({U} magic symbol)  ({U} magic symbol)   available each other turn available.

Steps

  1. During the end step before your turn, activate
    Isochron Scepter
    Isochron Scepter     by paying ({2} magic symbol)   and tapping it, casting a copy of
    Brainstorm
    Brainstorm     without paying its mana cost.
  2. Resolve
    Brainstorm
    Brainstorm    , causing you to draw three cards and put
    Temporal Manipulation
    Temporal Manipulation     and another card on top of your library, ensuring
    Temporal Manipulation
    Temporal Manipulation     is the topmost card.
  3. Move to your turn, drawing and revealing
    Temporal Manipulation
    Temporal Manipulation     during your draw step.
  4. God-Eternal Kefnet
    God-Eternal Kefnet    's first ability triggers, causing you to pay ({1} magic symbol)  ({U} magic symbol)  ({U} magic symbol)   to cast a copy of
    Temporal Manipulation
    Temporal Manipulation    .
  5. Resolve the copy of
    Temporal Manipulation
    Temporal Manipulation    , causing you to take an extra turn after this one.
  6. Activate
    Isochron Scepter
    Isochron Scepter     by paying ({2} magic symbol)   and tapping it, casting a copy of
    Brainstorm
    Brainstorm     without paying its mana cost.
  7. Repeat from step 2.

Results

  1. Infinite turns.

Metadata

  1. In 334 decks according to EDHREC.
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