Sophia, Dogged Detective, Lonis, Genetics Expert, Cryptic Trilobite, and Xenograft

Prerequisites

• Sophia, Dogged Detective on the battlefield
• Lonis, Genetics Expert on the battlefield
• Cryptic Trilobite on the battlefield
• Xenograft on the battlefield
• available

Steps

1. Activate Sophia by paying and sacrificing an artifact token
2. If the token was a Clue, Lonis's second ability triggers, putting a +1/+1 counter on a creature you control
3. Resolve the Sophia ability, putting a +1/+1 counter on each creature you control
4. Lonis's first ability triggers, creating a Clue token
5. Activate Cryptic Trilobite by removing a +1/+1 counter from it, adding that can only be spent to activate abilities
6. Repeat

Results

• Infinite +1/+1 counters
• Infinite colorless mana that can only be spent to activate abilities