Mortuary + Narcomoeba + Altar of Dementia

Prerequisites

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Steps

1. 1Activate Altar of Dementia by sacrificing Narcomoeba.
2. 2Narcomoeba dies, triggering Mortuary, putting Narcomoeba on top of your library from your graveyard.
3. 3Resolve the Altar of Dementia ability, causing you to mill Narcomoeba from the top of your library.
4. 4Narcomoeba triggers, putting itself from your graveyard onto the battlefield.
5. 5Repeat.

Effects

• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers