the front side of Feldon of the Third Path
the back of a classic MtG card
the front side of Timestream Navigator
the back of a classic MtG card

Color Identity: U, R

Initial Card State

  1.  Feldon of the Third Path on the battlefield.
  2.  Timestream Navigator in your graveyard.

Notable Prerequisites

  1. Feldon of the Third Path does not have summoning sickness.
  2. You control at least eight other permanents and/or have the city's blessing.

Mana Needed

  1. ({4} magic symbol)  ({U} magic symbol)  ({U} magic symbol)  ({R} magic symbol)   each turn available.

Steps

  1. Activate Feldon by paying ({2} magic symbol)  ({R} magic symbol)   and tapping it, creating a token copy of Timestream Navigator with haste.
  2. If you do not have the city's blessing, the Timestream Navigator token's ascend ability triggers, causing you to get the city's blessing for the rest of the game.
  3. Activate the Timestream Navigator token 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.
  4. Repeat each turn.

Results

  1. Infinite turns.

Metadata

  1. In 544 decks according to EDHREC.
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