Crystalline Crawler + Deadeye Navigator + Gray Merchant of Asphodel + Light of Promise

Mana needed: {1}{U}

WUB identity

Commander legal

The 4 combo pieces

What must be in place

Light of Promise attached to Crystalline Crawler.
Deadeye Navigator is paired with Gray Merchant of Asphodel.

How to execute it

  1. Activate Gray Merchant of Asphodel by paying {1}{U}, blinking it.
  2. When Gray Merchant of Asphodel enters the battlefield, it and Deadeye Navigator's soulbond ability trigger.
  3. Resolve the Deadeye Navigator trigger, pairing it and Gray Merchant of Asphodel.
  4. Resolve the Gray Merchant of Asphodel trigger, causing each opponent to lose life equal to your devotion to black, and causing you to gain that much life.
  5. Crystalline Crawler triggers, putting at least two +1/+1 counters on itself.
  6. Activate Crystalline Crawler's first ability twice by removing two +1/+1 counters from it, adding {1}{U}.
  7. Repeat.
  8. If your devotion to black is at least three, this combo nets infinite +1/+1 counters on Crystalline Crawler and infinite mana.

What the combo produces