Wight of the Reliquary, Intruder Alarm, and Felidar Retreat

Prerequisites

• Wight of the Reliquary on the battlefield
• Intruder Alarm on the battlefield
• Felidar Retreat on the battlefield
• Wight of the Reliquary does not have summoning sickness
• You control at least one additional creature

Steps

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 [token] creature token
3. When the creature token enters the battlefield, Intruder Alarm triggers, untapping all creatures
4. Repeat

Results

• Near-infinite landfall triggers
• Put all land cards from your library onto the battlefield tapped