Voltaic Construct + Toymaker + White Lotus Tile

Voltaic Construct

Toymaker

White Lotus Tile

How it works

1. Animate White Lotus Tile using Toymaker.
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.

This clever loop transforms a humble White Lotus Tile into a self-sustaining mana engine with the help of Toymaker's ability to turn noncreature artifacts into creatures. Once the Tile is animated and tapping for a surplus of mana, Voltaic Construct steps in to untap it for a modest fee of two mana. Because the mana produced by White Lotus Tile outweighs the activation cost to untap it, you can repeat this process endlessly to generate infinite colored mana.