Emry, Lurker of the Loch, Sewer-veillance Cam, Urza, Lord High Artificer, and Grinding Station

Prerequisites

• Emry, Lurker of the Loch on the battlefield
• Sewer-veillance Cam in the graveyard
• Urza, Lord High Artificer on the battlefield
• Grinding Station on the battlefield
• available

Steps

1. Activate Emry by tapping it, allowing you to cast Sewer-veillance Cam from your graveyard this turn
2. Cast Sewer-veillance Cam from your graveyard by paying
3. When Sewer-veillance Cam enters, it and Grinding Station trigger
4. Resolve the Sewer-veillance Cam trigger, untapping Emry
5. Resolve the Grinding Station trigger, untapping it
6. Activate Urza's first ability by tapping Sewer-veillance Cam, adding
7. Activate Grinding Station by tapping it and sacrificing Sewer-veillance Cam
8. Sewer-veillance Cam triggers, untapping a creature you control
9. Resolve the Grinding Station ability
10. Repeat

Results

• Cast all spells in your library
• Exile your library
• Infinite blue mana
• Infinite mana creatures you control can produce
• Infinite mill
• Infinite self-mill
• Infinite storm count
• Infinite untap of creatures you control
• Infinite card draw
• Infinite draw triggers