Bolas's Citadel + Mortuary + Shield Sphere + Shilgengar, Sire of Famine

WB identity

Commander legal

The 4 combo pieces

• Bolas's Citadel
• Mortuary
• Shield Sphere
• Shilgengar, Sire of Famine

How to execute it

1. Activate Shilgengar 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 Shilgengar ability.
4. Cast Shield Sphere from the top of your library by paying 0 life.
5. Repeat.

What the combo produces

• Infinite Blood tokens
• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite sacrifice triggers
• Infinite storm count