Voltaic Construct + Phyrexian Scriptures + Elvish Archdruid

Voltaic Construct

Phyrexian Scriptures

Elvish Archdruid

How it works

1. Cause Elvish Archdruid to become an artifact using Phyrexian Scriptures.
2. Activate Elvish Archdruid by tapping it, adding at least
3. Activate Voltaic Construct by paying 2, untapping Elvish Archdruid.
4. Repeat from step 2.

This clever loop turns your tribal lord into a mechanical powerhouse, using Phyrexian Scriptures's first chapter to transform Elvish Archdruid into an artifact creature. Once it bears that artifact type, Voltaic Construct can step in to repeatedly untap it using a portion of the massive green mana pool generated by the Archdruid's own tap ability. Because the mana produced outpaces the two-generic-mana cost to untap it, you are left with an infinite supply of green mana to fuel the rest of your turn.