The Master, Formed Anew, Archaeomancer, Snap, Swarm Intelligence, and Phyrexian Walker

Prerequisites

• The Master, Formed Anew in hand or in the command zone
• Archaeomancer in exile
• Snap in the graveyard
• Swarm Intelligence on the battlefield
• Phyrexian Walker in hand or on the battlefield or in the command zone or in exile or in the graveyard or in the library
• You control up to two lands that can tap to produce at least
• You have enough mana to pay for commander tax, if applicable

Steps

1. Activate up to two lands by tapping them, adding at least
2. Cast The Master either from your hand or from the command zone by paying and commander tax, if applicable, choosing to have it enter the battlefield as a copy of Archaeomancer
3. When The Master enters the battlefield, it triggers, returning Snap to your hand from your graveyard
4. Cast Snap by paying , targeting The Master
5. Swarm Intelligence triggers, copying Snap, targeting Ornithopter
6. Resolve the copy of Snap, returning Ornithopter to your hand from the battlefield, and untapping up to two lands
7. Activate up to two lands by tapping them, adding at least
8. Resolve the copy of Snap, returning The Master to your hand from the battlefield, and untapping up to two lands
9. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite magecraft triggers
• Infinite storm count
• Return any number of creatures to their owner's hand