Yomiji, Who Bars the Way, Leyline of Singularity, Phyrexian Altar, and Shield Sphere

Prerequisites

• Yomiji, Who Bars the Way on the battlefield
• Leyline of Singularity on the battlefield
• Phyrexian Altar on the battlefield
• Shield Sphere on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing Shield Sphere, adding one mana of any color
2. Yomiji triggers, returning Shield Sphere from your graveyard to your hand
3. Cast Shield Sphere by paying
4. Repeat

Results

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