Biogenic Upgrade + Crystalline Crawler + Reiterate

Mana needed: {8}{R}{R}{G}{G}

RG identity

Commander legal

The 3 combo pieces

What must be in place

Crystalline Crawler has at least two +1/+1 counters on it.

How to execute it

  1. Cast Biogenic Upgrade by paying {4}{G}{G}, targeting Crystalline Crawler.
  2. Holding priority, cast Reiterate with buyback by paying {4}{R}{R}, creating a copy of Biogenic Upgrade targeting Crystalline Crawler and returning Reiterate to your hand.
  3. Resolve the copy of Biogenic Upgrade, putting three +1/+1 counters on Crystalline Crawler and then doubling the number of +1/+1 counters on Crystalline Crawler.
  4. Activate Crystalline Crawler's first ability six times by removing six +1/+1 counters from it, adding {4}{R}{R}.
  5. Repeat from step 2.
  6. Once you have infinite mana, you may instead target other creatures using Biogenic Upgrade.

What the combo produces