Synod Artificer, Thousand-Year Elixir, and Empowered Autogenerator

Prerequisites

• Synod Artificer on the battlefield
• Thousand-Year Elixir on the battlefield
• Empowered Autogenerator on the battlefield
• Empowered Autogenerator has at least two charge counters on it

Steps

1. Activate Empowered Autogenerator's first ability by tapping it, putting a charge counter on it and adding at least three mana of any color
2. Activate Synod Artificer's second ability by paying and tapping it, untapping Thousand-Year Elixir and Empowered Autogenerator
3. Activate Thousand-Year Elixir by paying and tapping it, untapping Synod Artificer
4. Repeat

Results

• Infinite charge counters on Empowered Autogenerator
• Infinite colored mana
• Infinite untap of noncreature artifacts you control