Dimir Aqueduct + Retreat to Coralhelm + Walking Atlas

UB identity

Commander legal

The 3 combo pieces

• Dimir Aqueduct
• Retreat to Coralhelm
• Walking Atlas

How to execute it

1. Activate Walking Atlas by tapping it, putting Dimir Aqueduct from your hand onto the battlefield.
2. When Dimir Aqueduct enters the battlefield, it and Retreat to Coralhelm trigger.
3. Resolve the Dimir Aqueduct trigger, returning itself from the battlefield to your hand.
4. Resolve the Retreat to Coralhelm trigger, untapping Walking Atlas.
5. Repeat.

What the combo produces

• Infinite landfall triggers