Voltaic Construct + Mana Vault + Workshop Elders

Voltaic Construct

Mana Vault

Workshop Elders

How it works

1. Animate Mana Vault using Workshop Elders.
2. Activate Mana Vault by tapping it, adding CCC.
3. Activate Voltaic Construct by paying 2, untapping Mana Vault.
4. Repeat from step 2.

This loop is all about turning a high-yield mana rock into a self-sustaining engine, starting with Workshop Elders granting your artifacts the ability to become creatures. Once Mana Vault is animated into a 0/0 artifact creature with four +1/+1 counters, tapping it provides a massive influx of colorless mana. You then channel a portion of that energy into Voltaic Construct to untap the vault, leaving you with a net gain of mana each cycle.