Muldrotha, the Gravetide, The One Ring, and Phyrexia's Core

Prerequisites

• Muldrotha, the Gravetide on the battlefield
• The One Ring on the battlefield
• Phyrexia's Core on the battlefield
• You have not cast an artifact spell using Muldrotha this turn
• during each of your turns available

Steps

1. Activate Phyrexia's Core's second ability by paying , tapping it and sacrificing The One Ring, causing you to gain one life
2. Cast The One Ring from your graveyard by paying
3. The One Ring triggers, giving you protection from everything until your next turn
4. Repeat during each of your turns

Results

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