the front side of God-Eternal Kefnet
the back of a classic MtG card
the front side of Jace, the Mind Sculptor
the back of a classic MtG card
the front side of Temporal Mastery
the back of a classic MtG card

Color Identity: U

Initial Card State

  1.  Temporal Mastery in hand.
  2.  God-Eternal Kefnet and Jace on the battlefield.

Mana Needed

  1. ({3} magic symbol)  ({U} magic symbol)  ({U} magic symbol)   each turn available.

Steps

  1. Activate Jace's zero loyalty ability, putting Temporal Mastery on top of your library.
  2. Pass the turn.
  3. On your next draw step, when you draw Temporal Mastery, reveal it due to Kefnet's ability, making a copy that costs ({2} magic symbol)   less to cast.
  4. Cast the copy for ({3} magic symbol)  ({U} magic symbol)  ({U} magic symbol)  , granting you an extra turn.

Results

  1. Infinite turns.

Metadata

  1. In 300 decks according to EDHREC.
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