How it works
Steps
- 1Activate Llanowar Scout by tapping it, putting Dimir Aqueduct from your hand onto the battlefield.
- 2When Dimir Aqueduct enters the battlefield, it and Retreat to Coralhelm trigger.
- 3Resolve the Dimir Aqueduct trigger, returning itself from the battlefield to your hand.
- 4Resolve the Retreat to Coralhelm trigger, untapping Llanowar Scout.
- 5Repeat.
Commander brackets
In which brackets is this combo allowed, per Spellbook's Exhibition tier?