Genku, Future Shaper, Crystalline Crawler, Cryptic Trilobite, and Doc Samson, Super Psychiatrist

Prerequisites

• Genku, Future Shaper on the battlefield
• Crystalline Crawler on the battlefield
• Cryptic Trilobite on the battlefield
• Doc Samson, Super Psychiatrist on the battlefield
• available

Steps

1. Activate Genku by paying , putting two +1/+1 counters on each creature you control due to Doc Samson
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

Results

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