Fertilid, Crystalline Crawler, Avenger of Zendikar, Ancient Greenwarden, and Maskwood Nexus

Prerequisites

• Fertilid on the battlefield
• Crystalline Crawler on the battlefield
• Avenger of Zendikar on the battlefield
• Ancient Greenwarden on the battlefield
• Maskwood Nexus on the battlefield
• Fertilid has at least one +1/+1 counter on it
• 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, Avenger of Zendikar's second ability triggers twice, putting two +1/+1 counters on each creature you control
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