Ashnod's Transmogrant + Overgrown Battlement + Voltaic Construct

G identity

Commander legal

The 3 combo pieces

• Ashnod's Transmogrant
• Overgrown Battlement
• Voltaic Construct

What must be in place

You control at least three creatures with defender.

How to execute it

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

What the combo produces

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