The Clanroom is basically, where you create squads and clans. Clans are used for clan challenges, which give you more Valor than any battle 1 on 1. You also recruit people here into your squad, hire SoFs, and more. This is also where you declare clan challenges.

Clan challenges are just like Warzone battles (there is a example of a battle on the forum).When you create a clan, you have 5 slots. Slots are basically where you put people in, you buy slots with Valor. The more slots you buy, the better the clan. Good luck on your hunt for survival in the war of Gaia.