Ao, the Dawn Sky, Mortuary, and Naga Fleshcrafter

Prerequisites

• Ao, the Dawn Sky on the battlefield
• Mortuary on the battlefield
• Naga Fleshcrafter in hand
• available

Steps

1. Cast Naga Fleshcrafter by paying its mana cost
2. Choose to have it enter the battlefield as a copy of Ao
3. Put Naga Fleshcrafter into your graveyard due to the legend rule
4. When Naga Fleshcrafter dies, it and Mortuary trigger
5. Resolve the Mortuary trigger, putting Naga Fleshcrafter from your graveyard onto the top of your library
6. Resolve the Naga Fleshcrafter trigger, causing you to look at the top seven cards of your library and put Naga Fleshcrafter onto the battlefield as a copy of Ao
7. Repeat from step 2

Results

• Infinite LTB
• Infinite ETB
• Infinite death triggers