If you select Challenge Mode for a dungeon, you and your group will be racing against the clock to finish the dungeon as quickly as you can. Because you will get more reward if you finish it faster.
Mists of Pandaria's Challenge Mode provides a new way to reward team players and seasoned dungeon specialists. You can choose mode before entering a dungeon. In this mode, your purpose is to know the instance and down all the dungeons' bosses as fast as you can. You will be fighting using a set of items that's appropriate for the instance. It means that your gear will be regulazed.
At the end of challenge, every gamer would curious of the reward. The best rewards are given to those who can achieve gold medals. Things such as armor, titles, and mounts have been mentioned for those who want to complete the hardest difficulty and earn a gold medal.
Completing the Gold level on all dungeons rewarded a unique mount, Kwai-Lan, that is a flying mount that looks like a "Chinese dog statue with a Mogu like head".
Completing the Silver level on all dungeons rewards sweet looking gear with no states. Looking at vanity gear and gear intended for use in the Transmogrification system. These are all class-specific and have effects that proc off different class abilities.
The challenge level will be equal for all players. Depending on how quickly you clear the dungeon, your group can complete one of three levels above. Working together as a team, communicating well, and supporting and encouraging each other is the best way to get those shiny gold medals.
If you don't hurry and work as a team, you will never make it in time. So, why not buy high level and cheapest wow accounts at once for getting a metal with your partner.