Voltaic Construct + Gyre Sage + Thran Forge

Voltaic Construct

Gyre Sage

Thran Forge

How it works

1. Cause Gyre Sage to become an artifact using Thran Forge.
2. Activate Gyre Sage by tapping it, adding at least .
3. Activate Voltaic Construct by paying 2, untapping Gyre Sage.
4. Repeat from step 2.

This elegant transmutation loop relies on Thran Forge to fundamentally alter the nature of Gyre Sage, turning the mana dork into an artifact creature so it can be targeted by Voltaic Construct. Once Gyre Sage is carrying enough +1/+1 counters to generate more than the two mana required to untap it, tapping it for a surplus of green mana and spending part of that bounty to activate Voltaic Construct creates a self-sustaining cycle of infinite green mana.