Mortuary, Garruk's Horde, and Stonecoil Serpent

Prerequisites

• Mortuary on the battlefield
• Garruk's Horde on the battlefield
• Stonecoil Serpent in hand or in the library

Steps

1. Cast Stonecoil Serpent either from your hand or from the top of your library by paying
2. Stonecoil Serpent enters the battlefield and dies as a state-based action due to having zero toughness
3. Mortuary triggers, putting Stonecoil Serpent on top of your library from your graveyard
4. Repeat

Results

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