Voltaic Construct + Mana Vault + The Blackstaff of Waterdeep

Voltaic Construct

Mana Vault

The Blackstaff of Waterdeep

How it works

1. Animate Mana Vault using The Blackstaff of Waterdeep.
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 clever loop transforms a volatile artifact into a permanent power plant using The Blackstaff of Waterdeep to animate Mana Vault into a 4/4 artifact creature. Once it's a creature, Mana Vault's ability to tap for three colorless mana outpaces the two-mana activation cost of Voltaic Construct, which untaps it to repeat the cycle indefinitely. Because Voltaic Construct's untap ability targets *any* artifact creature, you aren't just netting infinite mana—you also leave every other artifact creature you control constantly refreshed and ready for action.