Urza, Prince of Kroog, Corridor Monitor, and Empowered Autogenerator

Prerequisites

• Urza, Prince of Kroog on the battlefield
• Corridor Monitor on the battlefield
• Empowered Autogenerator on the battlefield
• Empowered Autogenerator has at least five charge counters on it

Steps

1. Activate Empowered Autogenerator by tapping it, putting a charge counter on it and adding at least six mana of any color
2. Activate Urza by paying , creating a token copy of Corridor Monitor that is a 1/1 Soldier in addition to its other types
3. When the Corridor Monitor token enters the battlefield, it triggers, untapping Empowered Autogenerator
4. Repeat
5. Once you have infinite mana, you may target any other artifact(s) you control

Results

• Infinite charge counters on Empowered Autogenerator
• Infinite colored mana
• Infinite creature copies of artifacts you control
• Infinite creature tokens
• Infinite ETB