Filigree Sages + Prototype Portal + Silverbluff Bridge + Tiller Engine + Zirda, the Dawnwaker

Filigree Sages

Prototype Portal

Silverbluff Bridge

Tiller Engine

Zirda, the Dawnwaker

How it works

1. Activate Prototype Portal by paying 0 and tapping it, creating a token copy of Silverbluff Bridge.
2. When Silverbluff Bridge enters the battlefield, Tiller Engine triggers, untapping it.
3. Activate the Silverbluff Bridge token by tapping it, adding .
4. Activate Filigree Sages by paying , untapping Prototype Portal.
5. Repeat.

This loop is an exquisite feat of industrial recycling, turning Prototype Portal—imprinted with Silverbluff Bridge—into an endless engine of creation. Because Silverbluff Bridge is an artifact land, Prototype Portal can copy it for free when Zirda, the Dawnwaker discounts the activation cost down to zero. Every time a fresh token copy of Silverbluff Bridge enters the battlefield, Tiller Engine steps in to immediately untap it, allowing you to tap the indestructible land for blue mana. You then channel that mana directly into Filigree Sages to untap Prototype Portal, resetting the whole cycle to generate infinite mana, landfall triggers, and an army of artifact land tokens.