Norn's Choirmaster + Crystalline Crawler + Cryptic Trilobite + Deadeye Navigator

Prerequisites

• Your commander on the battlefield.
• Crystalline Crawler and Cryptic Trilobite have at least one +1/1 counter on them.
• Deadeye Navigator is paired with your commander.

Steps

1. 1Activate your commander by paying , blinking it.
2. 2Your commander enters the battlefield, triggering Deadeye Navigator's soulbond ability and Norn's Choirmaster.
3. 3Resolve the Deadeye Navigator, repairing it and your commander.
4. 4Resolve the Norn's Choirmaster trigger, putting a +1/+1 counter on Cryptic Trilobite and Crystalline Crawler.
5. 5Activate Crystalline Crawler's first ability by removing a +1/+1 counter from it, adding .
6. 6Activate Cryptic Trilobite's first ability by removing a +1/+1 counter from it, adding that can only be spent to activate abilities.
7. 7Repeat.

Effects

• Infinite +1/+1 counters on a creature
• Infinite colorless mana that can only be spent to activate abilities
• Infinite creature ETB
• Infinite creature LTB
• Infinite proliferate