Banishing Knack + Steelfin Whale

Mana needed: {U}

U identity

Commander legal

The 2 combo pieces

How to execute it

  1. Cast Banishing Knack by paying {U}, giving Steelfin Whale an activated ability until end of turn.
  2. Activate Steelfin Whale by tapping it, returning the free artifact from the battlefield to your hand.
  3. Cast that artifact by paying {0}.
  4. When that artifact enters the battlefield, it triggers Steelfin Whale, untapping it.
  5. Repeat from step 2.

What the combo produces