Xavier Sal, Infested Captain + Intruder Alarm + Awaken the Woods + Zektar Shrine Expedition

Xavier Sal, Infested Captain

Intruder Alarm

Awaken the Woods

Zektar Shrine Expedition

How it works

1. Activate Xavier Sal by tapping it and removing a counter from a permanent you control, creating a token copy of the Forest Dryad token.
2. When the Forest Dryad enters the battlefield, Intruder Alarm and Zektar Shrine Expedition trigger.
3. Resolve the Zektar Shrine Expedition trigger, putting a counter on a creature you control.
4. Resolve the Intruder Alarm trigger, untapping all creatures.
5. Repeat.

This fascinating synergy turns Xavier Sal, Infested Captain into an engine of endless growth by leaning on the global untap trigger of Intruder Alarm. Whenever you use Xavier's first ability to remove a counter from a permanent—perhaps fueling the engine or harvesting resources—you populate to make a new Forest Dryad token via Awaken the Woods. That creature's arrival causes Intruder Alarm to untap Xavier Sal, while simultaneously feeding the Landfall ability of Zektar Shrine Expedition to accumulate quest counters. It is a wonderfully intricate loop where even minor token generation spirals completely out of control into infinite entries and untaps.