Voltaic Construct + Priest of Titania + Silverskin Armor

Voltaic Construct

Priest of Titania

Silverskin Armor

How it works

1. Cause Priest of Titania to become an artifact using Silverskin Armor.
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.

By outfitting your Priest of Titania with Silverskin Armor, you cleverly transform the classic mana-producing Elf into an artifact creature that can be repeatedly targeted by Voltaic Construct's ability. As long as you control enough Elves for Priest of Titania to generate more than the two green mana required by Voltaic Construct's activation cost, this loop leaves you with infinite green mana and infinite untaps.