Pitiless Plunderer, Stridehangar Automaton, and Phantom Train

Prerequisites

• Pitiless Plunderer on the battlefield
• Stridehangar Automaton on the battlefield
• Phantom Train on the battlefield

Steps

1. Activate Phantom Train by sacrificing another creature
2. When the creature dies, Pitiless Plunderer triggers, creating a Treasure token and a 1/1 Thopter artifact creature token
3. Resolve the Phantom Train ability
4. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite colored mana
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite Treasure tokens
• Infinite +1/+1 counters on a creature