Ashnod's Transmogrant + Marwyn, the Nurturer + Voltaic Construct

G identity

Commander legal

The 3 combo pieces

• Ashnod's Transmogrant
• Marwyn, the Nurturer
• Voltaic Construct

How to execute it

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

What the combo produces

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