Glacial Chasm + Song of Creation + Walk-In Closet // Forgotten Cellar

Glacial Chasm

Song of Creation

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 defensive lock keeps you entirely insulated from harm by looping the absolute protection of Glacial Chasm. Because Glacial Chasm forces you to sacrifice a land upon entry, you can easily fuel this loop by leveraging the graveyard utility of Walk-In Closet // Forgotten Cellar to replay the sacrificed land, while Song of Creation churns through your deck by drawing two cards every time you cast a spell. On your next upkeep, you simply decline to pay Glacial Chasm's cumulative upkeep cost, sacrificing it so that you can play it right back out of your graveyard and repeat the cycle indefinitely.