Single post in Gym Forum Rules

i want to make a gym but i always keep an egg in my party to get chain rewards can i make a gym while using two pokemon as a starting with a double battle (i e :- like raihan in sword and shield) then bring out my ace pokemon Mod Edit; after tommorow i won't be having a egg in my party so i think i will make a gym tommorow edit by saqlain : i am sorry for double posting