Yomiji, Who Bars the Way, Morophon, the Boundless, The First Sliver, and Thermopod

Prerequisites

• Yomiji, Who Bars the Way on the battlefield
• Morophon, the Boundless on the battlefield
• The First Sliver on the battlefield
• Thermopod on the battlefield
• "Sliver" chosen with Morophon

Steps

1. Activate Thermopod's second ability by sacrificing The First Sliver, adding
2. Yomiji triggers, returning The First Sliver from your graveyard to your hand
3. Cast The First Sliver for
4. Resolve the First Sliver's cascade ability
5. The First Sliver enters the battlefield
6. Repeat

Results

• Infinite cascade with MV<=4
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite red mana
• Infinite sacrifice triggers
• Infinite storm