Uro, Titan of Nature's Wrath + Deadeye Navigator + Dimir Aqueduct + Spelunking

Uro, Titan of Nature's Wrath

Deadeye Navigator

Dimir Aqueduct

Spelunking

How it works

1. Cast Uro by paying 1
2. When Uro enters the battlefield, its first and second abilities trigger, as well as Deadeye Navigator's soulbond ability.
3. Resolve the Deadeye Navigator trigger, pairing it and Uro.
4. Resolve the second Uro trigger, causing you to draw a card, gain 3 life, and put Dimir Aqueduct from your hand onto the battlefield.
5. When Dimir Aqueduct enters untapped due to Spelunking, it triggers.
6. Holding priority, activate Dimir Aqueduct by tapping it, adding .
7. Resolve the Dimir Aqueduct trigger, returning it from the battlefield to your hand.
8. Activate Uro by paying 1, blinking it.
9. Repeat from step 2.

This brilliant loop uses Deadeye Navigator paired with Uro, Titan of Nature's Wrath to repeatedly trigger Uro's enters-the-battlefield abilities without needing to pay its steep escape cost. The engine is sustained by Dimir Aqueduct, which provides the blue mana required for the blink ability while neatly returning itself to your hand every time it enters, giving you a fresh land to drop off Uro's trigger. Meanwhile, Spelunking ensures that the Aqueduct enters the battlefield untapped, allowing you to instantly tap it for mana before its own bounce trigger forces it back to your hand.