Phyrexian Altar + Planar Gate + Sigil of the New Dawn + Su-Chi

W identity

Commander legal

The 4 combo pieces

How to execute it

  1. Activate Phyrexian Altar by sacrificing Su-Chi, adding {W}.
  2. Su-Chi dies, triggering itself and Sigil of New Dawn.
  3. Resolve the Su-Chi trigger, adding {C}{C}{C}{C}.
  4. Resolve the Sigil of New Dawn trigger, causing you to pay {1}{W} to return Su-Chi from your graveyard to your hand.
  5. Cast Su-Chi by paying {1}.
  6. Repeat.

What the combo produces