Voltaic Construct + Thran Forge + Leafkin Avenger

Voltaic Construct

Thran Forge

Leafkin Avenger

How it works

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

This clever loop turns Leafkin Avenger into a self-contained mana engine by making it an artifact creature with Thran Forge, which allows Voltaic Construct to untap it for a mere two mana. As long as you control enough high-power creatures to ensure Leafkin Avenger's tap ability yields more than the two mana required to untap it, you can repeat the process indefinitely. The result is an endless surplus of green mana, all fueled by the synergy between these three distinct pieces.