Slogurk, the Overslime + Primal Prayers + Birgi, God of Storytelling // Harnfel, Horn of Bounty + Decoction Module

Slogurk, the Overslime

Primal Prayers

Birgi, God of Storytelling // Harnfel, Horn of Bounty

Decoction Module

How it works

1. Activate Harnfel by discarding a land card.
2. Slogurk triggers, putting a +1/+1 counter on it.
3. Resolve the Harnfel ability.
4. Repeat from step 1 two additional times.
5. Activate Slogurk by removing three +1/+1 counters from it, returning it from the battlefield to your hand.
6. When Slogurk leaves the battlefield, it triggers, returning three land cards from your graveyard to your hand.
7. Cast Slogurk by paying E due to Primal Prayers.
8. When Slogurk enters, Decoction Module triggers, causing you to get E.
9. Repeat.

This clever loop transforms land recycling into an unstoppable engine by letting Primal Prayers bypass traditional mana costs, allowing you to cast Slogurk, the Overslime for just energy instead of {3}{G}. As Slogurk enters the battlefield, Decoction Module immediately generates replacement energy to keep the chain going, while Slogurk's leaves-the-battlefield trigger continuously returns discarded lands right back to your hand. Meanwhile, Harnfel, Horn of Bounty (the back face of Birgi, God of Storytelling) fuels the entire cycle by letting you discard those recovered lands to aggressively dig through your library, all while Birgi's front face adds extra red mana for every spell you cast along the way.