Speaking of single brush upstairs, you also need to have a certain equipment foundation. Where does the equipment come from? Still need to get from teamwork, it is impossible to complete customs clearance alone.
Conscious. And you need consciousness, as you can see from the arena. This is also the consistent style of Blizzard games, which is easy to learn but difficult to master.
You need a broker to play abroad, otherwise it is impossible not to get stuck.
Now with the stand-alone version of World of Warcraft, you don't have to consider the network speed.
If you just want to choose a career with single brush ability to play games, you still have a choice. Druids, knights, hunters, warlocks and wizards can all brush (more or less different).