Nick Valentine, Private Eye, Displaced Dinosaurs, and Phantom Train

Prerequisites

• Nick Valentine, Private Eye on the battlefield
• Displaced Dinosaurs on the battlefield
• Phantom Train on the battlefield

Steps

1. Activate Phantom Train by sacrificing another artifact creature
2. When the creature dies, Nick Valentine triggers, creating a Clue token that enters the battlefield as a 7/7 Dinosaur due to Displaced Dinosaurs
3. Resolve the Phantom Train ability
4. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite +1/+1 counters on a creature