Voltaic Construct + Priest of Titania + Memnarch

Voltaic Construct

Priest of Titania

Memnarch

How it works

1. Cause Priest of Titania to become an artifact using Memnarch.
2. Activate Priest of Titania by tapping it, adding at least .
3. Activate Voltaic Construct by paying 2, untapping Priest of Titania.
4. Repeat from step 2.

This loop is a masterclass in identity transformation, turning our humble mana dork into an unstoppable engine. Because Memnarch can turn any permanent into an artifact, Priest of Titania ceases to be merely an Elf and becomes a valid target for Voltaic Construct's untap ability. Once the priest is thus tagged, tapping her for a hefty sum of green mana provides more than enough funds to pay the Construct's two-mana untap cost, leaving you with infinite green mana and endless untaps.