Encroaching Mycosynth + Rofellos, Llanowar Emissary + Voltaic Construct

GU identity

The 3 combo pieces

• Encroaching Mycosynth
• Rofellos, Llanowar Emissary
• Voltaic Construct

What must be in place

You control at least three Forests.

How to execute it

1. Activate Rofellos by tapping it, adding at least {G}{G}{G}.
2. Activate Voltaic Construct by paying {2}, untapping Rofellos.
3. Repeat

What the combo produces

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