Glacial Chasm + Zuran Orb + Ramunap Excavator

Prerequisites

• You control at least one additional land.
• Your life total is at least three.

Steps

1. 1Play Glacial Chasm either from your hand or from your graveyard.
2. 2When Glacial Chasm enters the battlefield, its second ability triggers, causing you to sacrifice another land you control.
3. 3Pass the turn.
4. 4At the beginning of your next upkeep, Glacial Chasm's cumulative upkeep ability triggers, causing you to put an age counter on it and lose 2 life.
5. 5Play any land from your graveyard.
6. 6Pass the turn.
7. 7At the beginning of your next upkeep, Glacial Chasm's cumulative upkeep ability triggers.
8. 8Holding priority, activate Zuran Orb by sacrificing Glacial Chasm, causing you to gain two life.
9. 9Resolve the Glacial Chasm trigger, doing nothing.
10. 10Repeat.

Effects

• Lock
• Prevent all damage that would be dealt to you