Argothian Elder + Retreat to Coralhelm + Thawing Glaciers

Argothian Elder

Retreat to Coralhelm

Thawing Glaciers

How it works

1. Activate Thawing Glaciers by paying 1 and tapping it, searching your library for a basic land card and putting it onto the battlefield tapped.
2. The land enters the battlefield, triggering Retreat to Coralhelm, untapping Argothian Elder.
3. Activate Argothian Elder by tapping it, untapping Thawing Glaciers and the basic land.
4. Activate the basic land by tapping it, adding 1.
5. Repeat.