Voltaic Construct + Mycosynth Lattice + Fanatic of Rhonas

Voltaic Construct

Mycosynth Lattice

Fanatic of Rhonas

How it works

1. Activate Fanatic of Rhonas by tapping it, adding .
2. Activate Voltaic Construct by paying 2, untapping Fanatic of Rhonas.
3. Repeat

This clever loop begins with Mycosynth Lattice, whose static ability turns every permanent on the battlefield into an artifact in addition to its other types—including Fanatic of Rhonas. Because Fanatic of Rhonas is now an artifact creature, it becomes a valid target for Voltaic Construct's ability. Tapping Fanatic of Rhonas for its ferocious mana-producing ability yields four green mana, more than enough to pay the two generic mana required for Voltaic Construct to untap it, leaving you with a net gain of infinite colored mana.