Six + Turntimber Sower + Tangleroot + Exalted Sunborn

Six

Turntimber Sower

Tangleroot

Exalted Sunborn

How it works

1. Cast the creature with mana cost 0 from your graveyard for its retrace cost by discarding a land card.
2. Tangleroot and Turntimber Sower trigger.
3. Resolve the Tangleroot trigger, adding .
4. Resolve the Turntimber Sower trigger, creating two 0/1 Plant creature tokens.
5. Activate Turntimber Sower by paying , sacrificing the 0 cost creature and sacrificing the two Plants, returning a land card from your graveyard to your hand.
6. Repeat.

This engine transforms your graveyard into an absolute engine of creation, fueled by the retrace mechanic granted by Six to cast a zero-mana creature over and over again from the graveyard. Every time you cast it, Tangleroot rewards you with green mana to help sustain the loop, while Turntimber Sower watches lands hit the graveyard to churn out Plant tokens. Those tokens are then doubled by Exalted Sunborn's replacement effect, providing a rich harvest of sacrifices to feed Turntimber Sower's second ability so you can repeatedly fish that discarded land right back to your hand.