Voltaic Construct + Liquimetal Torque + Rainveil Rejuvenator

Voltaic Construct

Liquimetal Torque

Rainveil Rejuvenator

How it works

1. Cause Rainveil Rejuvenator to become an artifact using Liquimetal Torque.
2. Activate Rainveil Rejuvenator by tapping it, adding at least .
3. Activate Voltaic Construct by paying 2, untapping Rainveil Rejuvenator.
4. Repeat from step 2.

This clever loop hinges on Liquimetal Torque's ability to temporarily transform Rainveil Rejuvenator into an artifact, bridging the gap so it can be targeted by Voltaic Construct's untap ability. Once the Rejuvenator is an artifact, tapping it for green mana based on its power provides more than enough funds to pay for the Construct's {{2}} activation cost, leaving you with infinite green mana and infinite untaps.