Out of the Tombs, Canoptek Spyder, Necron Deathmark, and Leveler

Prerequisites

• Out of the Tombs on the battlefield
• Canoptek Spyder on the battlefield
• Necron Deathmark in the graveyard
• Leveler in hand
• available

Steps

1. Cast Leveler by paying When Leveler enters the battlefield, it and Canoptek Spyder trigger
2. Resolve Leveler's ability, exiling your library
3. Resolve Canoptek Spyder's trigger, returning Necron Deathmark from your graveyard to the battlefield with Out of the Tombs instead of drawing a card
4. When Necron Deathmark enters the battlefield, it and Canoptek Spyder trigger
5. Resolve Necron Deathmark's ability, destroying itself and causing target player to mill three cards
6. Repeat from step 4

Results

• Infinite death triggers
• Infinite mill
• Infinite LTB
• Infinite ETB