Voltaic Construct + Ashnod's Transmogrant + Fanatic of Rhonas

Voltaic Construct

Ashnod's Transmogrant

Fanatic of Rhonas

How it works

1. Cause Fanatic of Rhonas to become an artifact using Ashnod's Transmogrant.
2. Activate Fanatic of Rhonas by tapping it, adding
3. Activate Voltaic Construct by paying 2, untapping Fanatic of Rhonas.
4. Repeat from step 2.

By employing Ashnod's Transmogrant to permanently turn Fanatic of Rhonas into an artifact, we unlock a powerful synergy where this mana dork can be targeted by Voltaic Construct's untap ability. Since the ferocious condition on Fanatic of Rhonas provides a massive return of four green mana for each tap, spending two of that mana to untap it leaves you with a net surplus of green mana. This creates an infinite loop that generates boundless green mana and infinite untaps for your artifact creatures in formats like commander, legacy, oathbreaker, and vintage.