Nick Valentine, Private Eye, and March of the Machines

Prerequisites

• Nick Valentine, Private Eye on the battlefield
• March of the Machines on the battlefield
• You have a way to kill an artifact creature you control

Steps

1. Kill an artifact creature you control
2. Nick Valentine triggers, creating a Clue artifact token
3. The Clue enters the battlefield as a 0/0 artifact creature due to March of the Machines, and dies as a state-based action due to having 0 toughness
4. Repeat from step 2

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB