Morophon, the Boundless, Mortus Strider, and Phyrexian Altar

Prerequisites

• Morophon, the Boundless on the battlefield
• Mortus Strider on the battlefield
• Phyrexian Altar on the battlefield
• available

Steps

1. Cast Mortus Strider by paying due to Morophon
2. Activate Phyrexian Altar by sacrificing Mortus Strider, adding
3. When Mortus Strider dies, it triggers, returning itself from your graveyard to your hand
4. Repeat

Results

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