Voltaic Construct + Ygra, Eater of All + Gumato

Voltaic Construct

Ygra, Eater of All

Gumato

How it works

1. Activate Gumato by tapping it, adding
2. Activate Voltaic Construct by paying 2, untapping Gumato.
3. Repeat

This clever loop transforms a simple mana producer into an infinite green engine by leveraging the passive traits of the battlefield. With Ygra, Eater of All turning every creature into a Food artifact in addition to its other types, Gumato suddenly qualifies as an artifact creature—making it a legal target for Voltaic Construct. You simply tap Gumato for green mana, then feed a portion of that energy into Voltaic Construct's ability to untap Gumato, leaving you with an endless surplus of green mana and untaps.