Altar of Dementia + Bolas's Citadel + Mortuary + Shield Sphere

B identity

Commander legal

The 4 combo pieces

• Altar of Dementia
• Bolas's Citadel
• Mortuary
• Shield Sphere

How to execute it

1. Activate Altar of Dementia by sacrificing Shield Sphere
2. When Shield Sphere dies, Mortuary triggers, putting Shield Sphere from your graveyard onto the top of your library.
3. Resolve the Altar of Dementia ability.
4. Cast Shield Sphere from the top of your library by paying 0 life.
5. Repeat.

What the combo produces

• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite mill
• Infinite sacrifice triggers
• Infinite self-mill
• Infinite storm count