Feign Death, Mnemonic Wall, and Phyrexian Altar

Prerequisites

• Feign Death in hand
• Mnemonic Wall on the battlefield
• Phyrexian Altar on the battlefield
• available

Steps

1. Cast Feign Death by paying , targeting Mnemonic Wall
2. Activate Phyrexian Altar by sacrificing Mnemonic Wall, adding
3. Mnemonic Wall triggers, returning itself from your graveyard to the battlefield tapped with a +1/+1 counter on it
4. Mnemonic Wall enters the battlefield, returning Feign Death from your graveyard to your hand
5. Repeat

Results

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