Wight of the Reliquary + Intruder Alarm + Felidar Retreat

Wight of the Reliquary

Intruder Alarm

Felidar Retreat

How it works

1. Activate Wight of the Reliquary by tapping it and sacrificing another creature, causing you to search your library for a land card and put it onto the battlefield tapped.
2. When the land enters the battlefield, Felidar Retreat triggers, creating a creature token.
3. When the creature token enters the battlefield, Intruder Alarm triggers, untapping all creatures.
4. Repeat.

This brilliant engine turns a simple sacrifice loop into a complete board state overhaul by leveraging Intruder Alarm's static ability to untap your entire board every time a new creature arrives. By activating Wight of the Reliquary, you sacrifice a creature to fetch a land, which in turn triggers Felidar Retreat to manufacture a fresh token. That token's arrival wakes up all your creatures via Intruder Alarm—including the Wight itself—allowing you to immediately repeat the cycle until every single land from your library rests safely on the battlefield.