Ao, the Dawn Sky, Mortuary, and Vizier of Many Faces

Prerequisites

• Ao, the Dawn Sky on the battlefield
• Mortuary on the battlefield
• Vizier of Many Faces in hand
• available

Steps

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

Results

• Infinite LTB
• Infinite ETB
• Infinite death triggers