Adagia, Windswept Bastion, Treachery, and Uthros, Titanic Godcore

Prerequisites

• Adagia, Windswept Bastion on the battlefield
• Treachery on the battlefield
• Uthros, Titanic Godcore on the battlefield
• available

Steps

1. Activate Uthros and up to three other lands by paying and tapping them, adding at least
2. Activate Adagia by paying 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

Results

• Infinite mana lands you control can produce
• Infinite blue mana
• Infinite untap of lands you control