God-Eternal Kefnet + Jace, the Mind Sculptor + Walk the Aeons

Mana needed: {2}{U}{U} each turn

U identity

Commander legal

The 3 combo pieces

How to execute it

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

What the combo produces