Mana Reflection + Umbral Mantle + Zaxara, the Exemplary

BGU identity

Commander legal

The 3 combo pieces

What must be in place

Umbral Mantle attached to Zaxara.
Zaxara does not have summoning sickness.

How to execute it

  1. Activate Zaxara by tapping it, adding four mana of any color.
  2. Activate Zaxara by paying {3} and untapping it, giving itself +2/+2 until end of turn.
  3. Repeat.

What the combo produces