Adagia, Windswept Bastion + Treachery + Temple of the False God

Adagia, Windswept Bastion

Treachery

Temple of the False God

How it works

1. Activate Temple of the False God and up to three other lands by tapping them, adding at least 4.
2. Activate Adagia by paying 3 and tapping it, creating a token copy of Treachery that is legendary attached to any creature.
3. If you control two legendary Treachery permanents, put one into your graveyard due to the legend rule.
4. The Treachery token's enter-the-battlefield ability triggers, untapping Adagia, Temple of the False God and up to three other lands.
5. Repeat.

This elegant loop hinges on leveraging Adagia, Windswept Bastion's high-tier station ability to repeatedly duplicate a potent aura, turning a single cast into an engine for infinite mana. By using the colorless mana from Temple of the False God alongside your other lands to pay the activation cost, Adagia churns out a legendary token copy of Treachery. Each time this happens, the newly created Treachery enters the battlefield and triggers its untap ability, refreshing Temple of the False God and your remaining lands so you can feed the bastion all over again.