Phylath, World Sculptor, Fertilid, Crystalline Crawler, Ancient Greenwarden, and Conspiracy

Prerequisites

• Phylath, World Sculptor on the battlefield
• Fertilid on the battlefield
• Crystalline Crawler on the battlefield
• Ancient Greenwarden on the battlefield
• Conspiracy on the battlefield
• Fertilid has at least one +1/+1 counter on it
• "Plant" chosen with Conspiracy
• available

Steps

1. Activate Fertilid by paying and removing a +1/+1 counter from it, causing you to search your library for a basic land card and put it onto the battlefield tapped
2. When the land enters the battlefield, Phylath's second ability triggers twice, putting four +1/+1 counters on Fertilid and Crystalline Crawler
3. Activate Crystalline Crawler's first ability twice by removing two +1/+1 counters from it, adding
4. Repeat

Results

• Put all basic lands from your library onto the battlefield