Emry, Lurker of the Loch, The One Ring, and Grinding Station

Prerequisites

• Emry, Lurker of the Loch on the battlefield
• The One Ring on the battlefield
• Grinding Station on the battlefield
• during each of your turns available

Steps

1. Activate Grinding Station by tapping it and sacrificing The One Ring, causing a player to mill three cards Activate Emry by tapping it, allowing you to cast The One Ring from your graveyard this turn
2. Cast The One Ring by paying
3. The One Ring triggers, giving you protection from everything until your next turn
4. When The One Ring enters, Grinding Station triggers, untapping Grinding Station
5. Repeat during each of your turns

Results

• Lock
• Prevent all damage that would be dealt to you
• You have protection from everything