What is Clan Wars?
Clan Wars is an event held three times every Saturday and Sunday. Clan Wars start at 4:00PM, 5:00PM, and 6:00PM EST (Tier 1, 2, and 3 respectively). Each Clan War lasts for 45 minutes. During this time you may enter a special map and battle against the members of other clans who in the same level tier as you. There are three level tiers: 1-33, 1-66, and 1-100.
After entering the Clan War map (top right corner of the Clan War Center) you can click on a player’s avatar to immediately start a battle. The player who wins a Clan War battle will earn 1 battle point for their clan. If you disconnect or do not choose a move within 25 seconds a win will be given to your opponent. It is also not possible to battle players in the same clan as you, or who have the same IP address.
At the end of the time, the clan with the most battle points wins. All members who participate in a Clan War will receive some amount of Clan War Tokens. The better your clan places, the more tokens you will receive. You must win at least 1 battle to be eligible for the token prize. The player who performs the best (wins-losses) will receive a few bonus Clan War Tokens and Credits.
Where is Clan Wars Located?
The Clan War map can be accessed by using the door in the top-right corner in the Clan War Center, which is located in the top-right corner of Vermilion City.
Clan War Tokens can be exchanged for various prizes. Talk to the Prize Exchanger in the Clan War Center for more details.
All credits to BRODY for the information