Phyrexian Altar + Priest of Gix + Sigil of the New Dawn + Urza's Incubator

Mana needed: {B}

WB identity

Commander legal

The 4 combo pieces

What must be in place

"Cleric" chosen with Urza's Incubator.

How to execute it

  1. Cast Priest of Gix by paying {B}.
  2. Priest of Gix enters the battlefield, adding {B}{B}{B}.
  3. Activate Phyrexian Altar by sacrificing Priest of Gix, adding {W}.
  4. Sigil of the New Dawn triggers, causing you to pay {1}{W}, returning Priest of Gix to hand.
  5. Repeat.

What the combo produces