Genku, Future Shaper, Crystalline Crawler, Cryptic Trilobite, and Winding Constrictor

Prerequisites

• Genku, Future Shaper on the battlefield
• Crystalline Crawler on the battlefield
• Cryptic Trilobite on the battlefield
• Winding Constrictor on the battlefield
• available

Steps

1. Activate Genku by paying , putting two +1/+1 counters on each creature you control due to Winding Constrictor
2. Activate Cryptic Trilobite's first ability twice by removing two +1/+1 counters from it, adding that can only be spent to activate abilities
3. Activate Crystalline Crawler's first ability twice by removing two +1/+1 counters from it, adding
4. Repeat
5. Once you have infinite , you may forego removing counters from Cryptic Trilobite

Results

• Infinite +1/+1 counters on all creatures you control except Crystalline Crawler
• Infinite colorless mana that can only be spent to activate abilities