Mortuary, Walking Ballista, and Bolas's Citadel

Prerequisites

• Mortuary on the battlefield
• Walking Ballista in hand or in the library
• Bolas's Citadel on the battlefield

Steps

1. Cast Walking Ballista either from your hand by paying or from the top of your library by paying 0 life
2. Walking Ballista enters and dies as a state-based action due to having 0 toughness
3. Mortuary triggers, putting Walking Ballista from your graveyard onto the top of your library
4. Repeat

Results

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