Adagia, Windswept Bastion + Treachery + Uthros, Titanic Godcore

Adagia, Windswept Bastion

Treachery

Uthros, Titanic Godcore

How it works

1. Activate Uthros and up to three other lands by paying and 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, Uthros and up to three other lands.
5. Repeat.

This clever loop transforms Uthros, Titanic Godcore and Adagia, Windswept Bastion into an infinite mana and untap engine by taking advantage of legendary token creation and clever mana-positive land tapping. By activating Adagia's high station ability, you spend the mana generated by tapping Uthros and other lands to continuously copy Treachery onto a creature. Each time the Treachery token enters the battlefield, its triggered ability untaps all those lands, allowing you to cycle the legend rule on the copies while netting massive mana and repeating the process indefinitely.