Bolas's Citadel, Mortuary, and Hangarback Walker

Prerequisites

• Bolas's Citadel on the battlefield
• Mortuary on the battlefield
• Hangarback Walker in hand or in the library

Steps

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

Results

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