Leyline of Singularity + Shield Sphere + Thermopod + Yomiji, Who Bars the Way

URW identity

Commander legal

The 4 combo pieces

How to execute it

  1. Activate Thermopod's second ability by sacrificing Shield Sphere, adding {R}.
  2. Yomiji triggers, returning Shield Sphere from your graveyard to your hand.
  3. Cast Shield Sphere by paying {0}.
  4. Repeat.

What the combo produces