Morophon, the Boundless + Orah, Skyclave Hierophant + Phantom Train + Sister Hospitaller

WUBRG identity

Commander legal

The 4 combo pieces

• Morophon, the Boundless
• Orah, Skyclave Hierophant
• Phantom Train
• Sister Hospitaller

How to execute it

1. Activate Phantom Train by sacrificing Morophon.
2. When Morophon dies, Orah triggers, returning Sister Hospitaller from your graveyard to the battlefield.
3. When Sister Hospitaller enters, it triggers, returning Morophon from your graveyard to the battlefield and causing you to gain 7 life.
4. Resolve the Phantom Train ability.
5. Activate Phantom Train by sacrificing Sister Hospitaller.
6. When Sister Hospitaller dies, Orah triggers, allowing you to return a Cleric with mana value 5 or less from your graveyard to the battlefield.
7. Resolve the Phantom Train ability.
8. Repeat.

What the combo produces

• Infinite +1/+1 counters on a creature
• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite lifegain
• Infinite lifegain triggers
• Infinite recursion of some creature cards in your graveyard
• Infinite sacrifice triggers