Rings of Brighthearth + Deserted Temple + Uthros, Titanic Godcore

Prerequisites

• You control at least five artifacts. Uthros has twelve or more charge counters on it

Steps

1. 1Activate Uthros, Titanic Godcore by paying and tapping it, adding at least
2. 2Activate Deserted Temple's second ability by paying and tapping it, targeting Uthros, Titanic Godcore.
3. 3Rings of Brighthearth triggers, causing you to pay to copy Deserted Temple's ability, targeting Deserted Temple.
4. 4Resolve both Deserted Temple abilities, untapping Deserted Temple and Uthros, Titanic Godcore
5. 5Repeat

Effects

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