Voltaic Construct + Liquimetal Coating + Karametra's Acolyte

Voltaic Construct

Liquimetal Coating

Karametra's Acolyte

How it works

1. Cause Karametra's Acolyte to become an artifact using Liquimetal Coating.
2. Activate Karametra's Acolyte by tapping it, adding at least .
3. Activate Voltaic Construct by paying 2, untapping Karametra's Acolyte.
4. Repeat from step 2.

By using Liquimetal Coating to turn Karametra's Acolyte into an artifact, you prepare the foundation for a brilliant mechanical transformation. Once the Acolyte shares the artifact type, it becomes a valid target for Voltaic Construct's untap ability. As long as Karametra's Acolyte generates more than two green mana per tap based on your green devotion, you can repeatedly pay the Construct's activation cost to untap the Acolyte, netting infinite green mana in the process.