Yarok, the Desecrated, Gravebane Zombie, Bolas's Citadel, Verdant Sun's Avatar, and Phyrexian Altar

Prerequisites

• Yarok, the Desecrated on the battlefield
• Gravebane Zombie on the battlefield
• Bolas's Citadel on the battlefield
• Verdant Sun's Avatar on the battlefield
• Phyrexian Altar on the battlefield
• Your life total is at least five

Steps

1. Activate Phyrexian Altar by sacrificing Gravebane Zombie, adding one mana of any color
2. Gavebane Zombie is put on top of your library instead of your graveyard
3. Cast Gravebane Zombie from the top of your library by paying four life
4. When Gravebane Zombie enters the battlefield, Verdant Sun's Avatar triggers twice, causing you to gain four life
5. Repeat

Results

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