Voltaic Construct, Rise and Shine, and Astral Cornucopia

Prerequisites

• Voltaic Construct on the battlefield
• Rise and Shine in hand
• Astral Cornucopia on the battlefield
• available

Steps

1. Animate Astral Cornucopia using Rise and Shine
2. Activate Astral Cornucopia by tapping it, adding at least three mana of any color Activate Voltaic Construct by paying , untapping Astral Cornucopia
3. Repeat from step 2

Results

• Infinite colored mana
• Infinite mana artifacts you control can produce
• Infinite untap of artifacts you control