Orah, Skyclave Hierophant
Sister Hospitaller
Valiant Changeling
Phyrexian Altar

   Prerequisites

What do I need to start this combo?
Sister Hospitaller in your graveyard.
All other permanents on the battlefield.

   Steps

How does this combo work?
1
Activate Phyrexian Altar by sacrificing Valiant Changeling.
2
When Valiant Changeling dies, Orah triggers, returning Sister Hospitaller from your graveyard to the battlefield.
3
When Sister Hospitaller enters, it triggers, returning Valiant Changeling from your graveyard to the battlefield and causing you to gain 7 life.
4
Activate Phyrexian Altar by sacrificing Sister Hospitaller.
5
When Sister Hospitaller dies, Orah triggers, allowing you to return a Cleric with mana value 5 or less from your graveyard to the battlefield.
6
Repeat.

   Results

What do I get from this combo?
Infinite ETB
Infinite LTB
Infinite colored mana
Infinite death triggers
Infinite lifegain
Infinite lifegain triggers
Infinite recursion of some creature cards in your graveyard
Infinite sacrifice triggers
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