Tangleroot + Words of Wind + Crimson Kobolds + Soul of the Harvest

Tangleroot

Words of Wind

Crimson Kobolds

Soul of the Harvest

How it works

1. Cast Crimson Kobolds by paying 0.
2. Tangleroot triggers, adding .
3. When Crimson Kobolds enters the battlefield, Soul of the Harvest triggers.
4. Holding priority, activate Words of Wind by paying 1, replacing the next card you draw.
5. Resolve the Soul of the Harvest trigger, causing you to return Crimson Kobolds 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 elegant, mana-neutral loop turns the free-casting nature of Crimson Kobolds into a devastating one-sided bounce engine. Every time you cast your zero-mana kobold, Tangleroot provides the green mana needed to activate Words of Wind, replacing your next card draw with a mass-bounce effect. That replacement draw is fueled by Soul of the Harvest, which happily triggers upon the kobold's entry and lets you pick it right back up into your hand. By repeating this process, you can bounce every single permanent your opponents control back to their hands while churning out infinite creature enters-the-battlefield triggers, leaves-the-battlefield triggers, and a limitless storm count.