Voltaic Construct + Animating Faerie // Bring to Life + White Lotus Tile

Voltaic Construct

Animating Faerie // Bring to Life

White Lotus Tile

How it works

1. Animate White Lotus Tile using Bring to Life.
2. Activate White Lotus Tile by tapping it, adding at least three mana of any color.
3. Activate Voltaic Construct by paying 2, untapping White Lotus Tile.
4. Repeat from step 2.

To pull off this engine, you first need Animating Faerie's "Bring to Life" adventure to permanently awaken White Lotus Tile into a 0/0 artifact creature with four +1/+1 counters, making it eligible to be targeted by abilities that affect creatures. Once it's an animated creature, White Lotus Tile's own mana ability can tap to generate more than enough mana to fund Voltaic Construct's untap ability. Because Voltaic Construct untaps the newly-freed artifact creature for a mere two mana while leaving you with a surplus, you can endlessly repeat the loop to generate infinite colored mana and infinite untaps.