Voltaic Construct, Accomplished Alchemist, and Ashnod's Transmogrant

Prerequisites

• Voltaic Construct on the battlefield
• Accomplished Alchemist on the battlefield
• Ashnod's Transmogrant on the battlefield

Steps

1. Cause Accomplished Alchemist to become an artifact using Ashnod's Transmogrant
2. Activate Accomplished Alchemist by tapping it, adding at least
3. Activate Voltaic Construct by paying , untapping Accomplished Alchemist
4. Repeat from step 2

Results

• Infinite colored mana
• Infinite untap of artifact creatures you control