Primary

• Cosmog Evolves into Cosmoem
• Cosmog Partner of Lillie

Extended

• Lillie Daughter of Lusamine
• Lillie Younger Sister of Gladion
• Lillie Caretaker of Cosmog
• Cosmoem Evolves from Cosmog
• Cosmoem Evolves into Lunala
• Cosmoem Evolves into Solgaleo