Mox Jasper + Retraction Helix + Rona, Herald of Invasion // Rona, Tolarian Obliterator

Mana needed: {U}

UB identity

Commander legal

The 3 combo pieces

What must be in place

You control a Dragon.

How to execute it

  1. Activate Mox Jasper by tapping it, adding {U}.
  2. Cast Retraction Helix by paying {U}, giving Rona an activated ability this turn.
  3. Activate Rona by tapping it, returning Mox Jasper from the battlefield to your hand.
  4. Cast Mox Jasper by paying {0}.
  5. Rona triggers, untapping itself.
  6. Activate Mox Jasper by tapping it, adding one mana of any color.
  7. Repeat from step 3.

What the combo produces