Zirda, the Dawnwaker + Sunforger + Unexpected Windfall + Jeska's Will + Tomb Trawler

Zirda, the Dawnwaker

Sunforger

Unexpected Windfall

Jeska's Will

Tomb Trawler

How it works

1. Activate Sunforger by paying and unattaching it, searching your library for Jeska's Will and casting it without paying its mana cost, adding at least six .
2. Activate Sunforger's equip ability by paying 1, attaching it to Zirda.
3. Activate Sunforger by paying and unattaching it, searching your library for Unexpected Windfall and casting it without paying its mana cost and discarding a card.
4. Resolve Unexpected Windfall, causing you to draw two cards and create two Treasures.
5. Activate Sunforger's equip ability by paying 1, attaching it to Zirda.
6. Activate Tomb Trawler twice by paying 2, putting Unexpected Windfall and Jeska's Will from your graveyard onto the bottom of your library.
7. Activate two Treasures by tapping and sacrificing them, adding .
8. Repeat.

This loop centers on Sunforger's ability to repeatedly tutor and cast powerful red spells directly from your library, completely bypassing their normal mana costs. Zirda, the Dawnwaker is the linchpin that makes this sustainable, providing a crucial discount that shrinks Sunforger's equip cost down to just a single mana. To keep the engine running, Jeska's Will generates a massive influx of red mana, while Unexpected Windfall keeps your hand full of fresh cards and supplies the artifact tokens needed for further sacrifices. Finally, Tomb Trawler acts as your recycling center, shuffling those used instant spells right back to the bottom of your library so Sunforger can find them all over again.