Mortuary, Phyrexian Altar, Willow Geist, and Gwenom, Remorseless

Prerequisites

• Mortuary on the battlefield
• Phyrexian Altar on the battlefield
• Willow Geist in hand
• Gwenom, Remorseless on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing Willow Geist
2. When Willow Geist dies, it and Mortuary triggers
3. Resolve the Mortuary trigger, putting Willow Geist from your graveyard onto the top of your library
4. Resolve the Willow Geist trigger, causing you to gain 1 life Cast Willow Geist from the top of your library by paying 1 life due to Gwenom
5. Repeat

Results

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