Voltaic Construct, Tough Cookie, and Sceptre of Eternal Glory

Prerequisites

• Voltaic Construct on the battlefield
• Tough Cookie on the battlefield
• Sceptre of Eternal Glory on the battlefield
• available

Steps

1. Animate Sceptre of Eternal Glory using Tough Cookie
2. Activate Sceptre of Eternal Glory by tapping it, adding three mana of any color Activate Voltaic Construct by paying , untapping Sceptre of Eternal Glory
3. Repeat from step 2

Results

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