Bolas's Citadel + Extruder + Mortuary + Ornithopter

B identity

Commander legal

The 4 combo pieces

• Bolas's Citadel
• Extruder
• Mortuary
• Ornithopter

How to execute it

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

What the combo produces

• Infinite +1/+1 counters on creatures you control
• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite sacrifice triggers
• Infinite storm count