Rooftop Storm, Mortuary, Realmwalker, and Fell Stinger

Prerequisites

• Rooftop Storm on the battlefield
• Mortuary on the battlefield
• Realmwalker on the battlefield
• Fell Stinger in hand or in the library
• "Zombie" or "Scorpion" chosen with Realmwalker

Steps

1. Cast Fell Stinger either from your hand or from the top of your library by paying
2. When Fell Stinger enters the battlefield, its exploit ability triggers, causing you to sacrifice it
3. When Fell Stinger dies, Mortuary triggers, putting it on top of your library from your graveyard
4. Repeat

Results

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