What is metagame?
I have heard a lot of people tell me that your Meta Game is just as important as playing well. What exactly is the Meta game and how does one go about improving it, or even getting it to begin with?
Simply put, it is the set of strategies that have been tried and found effective by the general community at large in how to win in the game you are playing, whether it is Starcraft 2, Starcraft, League of Legends, DoTA, or any other video game/board game that you are interested in.
To improve it, you first need to understand it to the point that you understand its strengths and weaknesses. You need to understand the intricacies of the game in question enough to understand how you can then improve upon the existing meta game.
To get it is much easier, you can play a lot, you'll see it used enough to get a basic understanding or you can watch others play a lot. Alternatively you can also read articles/books of strategies that people have used with success. The resource depends with what game you are talking about. For instance, Chess has lots of great books as many have studied the game and chosen to write books on the subject. On the other hand, video games may better be learned online or watching streams of "professional players"
Meta is a word for the currently most used/most viable things. You can use it to builds, team setups,champions.
Solo Top, Jungle, AP-Mid, AD-Carry + Support Bot combination would be a meta.