Tangleroot + Words of Wind + Phyrexian Walker + Guardian Project

Tangleroot

Words of Wind

Phyrexian Walker

Guardian Project

How it works

1. Cast Phyrexian Walker by paying 0.
2. Tangleroot triggers, adding .
3. When Phyrexian Walker enters the battlefield, Guardian Project triggers.
4. Holding priority, activate Words of Wind by paying 1, replacing the next card you draw.
5. Resolve the Guardian Project trigger, causing you to return Phyrexian Walker from the battlefield to your hand, and causing each opponent to return a permanent they control from the battlefield to your hand.
6. Repeat.

This loop is a masterclass in turning a free artifact creature into a devastating control engine. By casting Phyrexian Walker for zero mana, you instantly trigger Tangleroot to recoup green mana and Guardian Project to trigger card draw. Instead of actually drawing that card, you pay one mana into Words of Wind to replace the draw, forcing yourself to bounce the Phyrexian Walker right back to your hand while systematically stripping your opponents of their entire boards. Because the Walker is a nontoken creature with a unique name, you can replay it immediately to repeat the process, cleanly clearing every single permanent your opponents control back to their owners' hands.