Bolas's Citadel + Grinding Station + Mortuary + Ornithopter

B identity

Commander legal

The 4 combo pieces

• Bolas's Citadel
• Grinding Station
• Mortuary
• Ornithopter

How to execute it

1. Activate Grinding Station by tapping it and sacrificing Ornithopter
2. When Ornithopter dies, Mortuary triggers, putting Ornithopter from your graveyard onto the top of your library.
3. Resolve the Grinding Station ability.
4. Cast Ornithopter from the top of your library by paying 0 life.
5. When Ornithopter enters, Grinding Station triggers, untapping Grinding Station.
6. Repeat.

What the combo produces

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