Sidisi, Regent of the Mire + Sister Hospitaller + Sky Hussar + Umbral Collar Zealot

WUB identity

Commander legal

The 4 combo pieces

• Sidisi, Regent of the Mire
• Sister Hospitaller
• Sky Hussar
• Umbral Collar Zealot

How to execute it

1. Activate Sidisi by tapping it and sacrificing Sky Hussar, returning Sister Hospitaller from your graveyard to the battlefield.
2. When Sister Hospitaller enters the battlefield, it triggers, returning Sky Hussar from your graveyard to the battlefield and causing you to gain 5 life.
3. When Sky Hussar enters the battlefield, it triggers, untapping all creatures.
4. Activate Umbral Collar Zealot by sacrificing Sister Hospitaller.
5. Repeat.

What the combo produces

• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite lifegain
• Infinite lifegain triggers
• Infinite mana creatures you control can produce
• Infinite sacrifice triggers
• Infinite surveil
• Infinite untap of creatures you control