Wight of the Reliquary, Retreat to Coralhelm, and Sporemound

Prerequisites

• Wight of the Reliquary on the battlefield
• Retreat to Coralhelm on the battlefield
• Sporemound 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, Sporemound and Retreat to Coralhelm trigger
3. Resolve the Sporemound trigger, creating a 1/1 Saproling creature token
4. Resolve the Retreat to Coralhelm trigger, untapping Wight of the Reliquary
5. Repeat

Results

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