Samwise the Stouthearted, Dual Nature, and Phyrexian Altar

Prerequisites

• Samwise the Stouthearted in hand
• Dual Nature on the battlefield
• Phyrexian Altar on the battlefield
• available

Steps

1. Cast Samwise the Stouthearted by paying
2. When Samwise the Stouthearted enters the battlefield, it and Dual Nature's first ability trigger
3. Resolve the Samwise the Stouthearted trigger, returning nothing to your hand from your graveyard, and causing the Ring to tempt you
4. Activate Phyrexian Altar by sacrificing Samwise, adding
5. Dual Nature's second ability triggers, exiling all Samwise the Stouthearted tokens on the battlefield
6. Resolve the Dual Nature trigger from step 2, creating a token copy of Samwise the Stouthearted
7. When the Samwise the Stouthearted token enters the battlefield, it triggers, returning the nontoken Samwise the Stouthearted to your hand from your graveyard, and causing the Ring to tempt you
8. Activate Phyrexian Altar by sacrificing the Samwise the Stouthearted token, adding
9. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite storm count