Activate Zimone and Dina by tapping it and sacrificing another creature, causing you to reveal cards from the top of your library until you reveal a land card, put it into your hand, then put the land onto the battlefield tapped, and repeat this process once if you control at least eight lands.
Retreat to Coralhelm and Retreat to Emeria trigger for each land that enters the battlefield this way.
Resolve the Retreat to Coralhelm trigger(s), untapping Zimone and Dina.
Resolve the Retreat to Emeria trigger(s), creating that many creature tokens.
Repeat.
Results
Order your library.
Put all lands from your library and hand onto the battlefield tapped.