Mortuary, Harvester of Souls, and Shifting Wall

Prerequisites

• Mortuary on the battlefield
• Harvester of Souls on the battlefield
• Shifting Wall in hand

Steps

1. Cast Shifting Wall by paying
2. Shifting Wall enters and dies as a state-based action due to having 0 toughness, triggering Mortuary and Harvester of Souls
3. Resolve the Mortuary trigger, putting Shifting Wall from your graveyard onto the top of your library
4. Resolve the Harvester of Souls trigger, causing you to draw a card, thus drawing Shifting Wall from your library
5. Repeat

Results

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