the front side of Timestream Navigator
the back of a classic MtG card
the front side of Grenzo, Dungeon Warden
the back of a classic MtG card

Color Identity: U, B, R

Initial Card State

  1.  Timestream Navigator and Grenzo on the battlefield.

Notable Prerequisites

  1. You have the city's blessing.
  2. Timestream Navigator does not have summoning sickness.

Mana Needed

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

Steps

  1. Tap Timestream Navigator to take an extra turn, putting it on the bottom of your library.
  2. Activate Grenzo to return Timestream Navigator to the battlefield.
  3. Move to your next turn.
  4. Repeat for infinite turns.

Results

  1. Infinite turns.

Metadata

  1. In 119 decks according to EDHREC.
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