Crimson Kobolds + Leyline of Singularity + Phyrexian Altar + Yomiji, Who Bars the Way

URW identity

Commander legal

The 4 combo pieces

How to execute it

  1. Activate Phyrexian Altar by sacrificing Crimson Kobolds, adding one mana of any color.
  2. Yomiji triggers, returning Crimson Kobolds from your graveyard to your hand.
  3. Cast Crimson Kobolds by paying {0}.
  4. Repeat.

What the combo produces