Retreat to Coralhelm + Llanowar Scout + Izzet Boilerworks

Retreat to Coralhelm

Llanowar Scout

Izzet Boilerworks

How it works

1. Activate Llanowar Scout by tapping it, putting Izzet Boilerworks from your hand onto the battlefield.
2. When Izzet Boilerworks enters the battlefield, it and Retreat to Coralhelm trigger.
3. Resolve the Izzet Boilerworks trigger, returning itself from the battlefield to your hand.
4. Resolve the Retreat to Coralhelm trigger, untapping Llanowar Scout.
5. Repeat.

This elegant loop turns a simple bounce-land into an infinite engine by exploiting the synergy between Llanowar Scout and Retreat to Coralhelm. Because Izzet Boilerworks returns itself to your hand upon entering the battlefield, it conveniently provides a perpetual land drop for the Scout to redeploy. Every time Izzet Boilerworks hits the board, Retreat to Coralhelm triggers its landfall ability to untap Llanowar Scout, resetting the creature so it can immediately play the land all over again.