Crystalline Crawler, Biogenic Upgrade, and Reiterate

Prerequisites

• Crystalline Crawler on the battlefield
• Biogenic Upgrade in hand
• Reiterate in hand
• Crystalline Crawler has at least two +1/+1 counters on it
• available

Steps

1. Cast Biogenic Upgrade by paying , targeting Crystalline Crawler
2. Holding priority, cast Reiterate with buyback by paying , 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
5. Repeat from step 2
6. Once you have infinite mana, you may instead target other creatures using Biogenic Upgrade

Results

• Infinite +1/+1 counters
• Infinite colored mana
• Infinite magecraft triggers
• Infinite storm count