Color Identity: U, B, R

Prerequisites

  1.  
    Timestream Navigator
    Timestream Navigator     in hand.
  2.  
    Riptide Laboratory
    Riptide Laboratory     on the battlefield.
  3.   
    Inalla, Archmage Ritualist
    Inalla     on the battlefield or in the command zone.
  4. You control at least nine permanents or have the city's blessing.
  5. ({5} magic symbol)  ({U} magic symbol)  ({U} magic symbol)  ({U} magic symbol)  ({U} magic symbol)   each turn available.

Steps

  1. Cast
    Timestream Navigator
    Timestream Navigator     by paying ({1} magic symbol)  ({U} magic symbol)  .
  2. Timestream Navigator
    Timestream Navigator     enters the battlefield, triggering
    Inalla, Archmage Ritualist
    Inalla    , causing you to pay ({1} magic symbol)   to create a token copy of
    Timestream Navigator
    Timestream Navigator     with haste.
  3. If you do not have the city's blessing,
    Timestream Navigator
    Timestream Navigator     triggers, giving you the city's blessing for the rest of the game.
  4. Activate
    Riptide Laboratory
    Riptide Laboratory     by paying ({1} magic symbol)  ({U} magic symbol)   and tapping it, returning the nontoken
    Timestream Navigator
    Timestream Navigator     to your hand from the battlefield.
  5. Activate the token
    Timestream Navigator
    Timestream Navigator     by paying ({2} magic symbol)  ({U} magic symbol)  ({U} magic symbol)  , tapping it, and putting it on the bottom of your library, causing you to take an extra turn after this one.
  6. Repeat each turn.

Results

  1. Infinite turns.

Metadata

  1. In 2137 decks according to EDHREC.
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