Oltec Matterweaver + Whitemane Lion + Xorn

Oltec Matterweaver

Whitemane Lion

Xorn

How it works

1. Cast Whitemane Lion by paying 1.
2. Oltec Matterweaver triggers, creating two token copies of any Treasure token you control.
3. When Whitemane Lion enters the battlefield, it triggers, returning itself from the battlefield to your hand.
4. Activate two Treasures by tapping and sacrificing them, adding 1.
5. Repeat.

This clever loop centers around casting Whitemane Lion, which immediately triggers its own enter-the-battlefield ability to bounce itself right back to your hand. Meanwhile, Oltec Matterweaver watches you cast that creature spell to fuel its reflexive manufacturing, while Xorn steps in as a powerful replacement effect to ensure your token generation yields extra loot every single time. By continuously recycling the Lion for just {1}{W}, you feed a self-sustaining engine that endlessly triggers creature events and generates a surplus of mana from your expanded hoard.