Galadriel of Lothlórien + Retreat to Coralhelm + Penance + Dimir Aqueduct

Galadriel of Lothlórien

Retreat to Coralhelm

Penance

Dimir Aqueduct

How it works

1. Play Dimir Aqueduct.
2. When Dimir Aqueduct enters the battlefield, it and Retreat to Coralhelm trigger.
3. Resolve the Dimir Aqueduct trigger, returning it from the battlefield to your hand.
4. Holding priority, activate Penance by putting Dimir Aqueduct from your hand onto the top of your library.
5. Resolve the Retreat to Coralhelm trigger, causing you to scry 1, ensuring to leave Dimir Aqueduct on top of your library.
6. Galadriel triggers, putting Dimir Aqueduct from the top of your library onto the battlefield tapped.
7. Repeat from step 2.