Emry, Lurker of the Loch, Thornbite Staff, Yahenni, Undying Partisan, and Phyrexian Walker

Prerequisites

• Emry, Lurker of the Loch on the battlefield
• Thornbite Staff on the battlefield
• Yahenni, Undying Partisan on the battlefield
• Phyrexian Walker in the graveyard
• Emry does not have summoning sickness

Steps

1. Activate Emry by tapping it, allowing you to cast Phyrexian Walker from your graveyard this turn
2. Cast Phyrexian Walker from your graveyard by paying
3. Activate Yahenni by sacrificing Phyrexian Walker
4. When Phyrexian Walker dies, Emry triggers, untapping Emry
5. Resolve the Yahenni ability
6. Repeat

Results

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