Glacial Chasm + Mina and Denn, Wildborn + Walk-In Closet // Forgotten Cellar

Glacial Chasm

Mina and Denn, Wildborn

Walk-In Closet // Forgotten Cellar

How it works

1. Play Glacial Chasm either from your hand or from your graveyard.
2. When Glacial Chasm enters the battlefield, its second ability triggers, causing you to sacrifice another land you control.
3. Play any land from your graveyard.
4. At the beginning of your next upkeep, Glacial Chasm's cumulative upkeep ability triggers, allowing you to choose not to pay the cost and sacrifice it instead.
5. Repeat.

This ingenious loop locks you behind an impenetrable defense by exploiting the way Glacial Chasm enters the battlefield. Whenever Glacial Chasm arrives, you must sacrifice a land, but Walk-In Closet // Forgotten Cellar lets you immediately replay that sacrificed land from your graveyard thanks to Mina and Denn, Wildborn's ability to grant an additional land drop each turn. When the cumulative upkeep of Glacial Chasm eventually becomes too steep to pay, you simply let it go to the graveyard and replay it right back out, continuously resetting its age counters while keeping all damage dealt to you completely prevented.