RabadonExpert

League of Legends is a game where every small decision you make counts. A lot of games are lost when people decide to fight an unwinnable battle, build the wrong items or go for the wrong objective.
But decisions are not only important during the match, but before it as well. And if you are having problems with your pre-match preparation, RabadonExpert is a tool you should consider using.

What it does

This program contains small guides for all the champions in the game. It gets updated along with the game, using op.gg to continuously refresh its data.
When you open it, you get an alphabetical list with all the champions. Clicking on any one of them will give you information about what they are good against, what others are good against them, the best spells, items, in what order to upgrade their abilities and what masteries to use.

How you can use it

Just like you would have a travel guide at hand when you are going to another country, you can keep RabadonExpert running while you are playing League of Legends as your companion.
You can use it to see what items you should start with, what others to build during the game and which abilities are more important to max out first.
Also, if you are in a ranked match queue and your lane opponent chose his champion before you, the program can be used to find out what to pick in order to counter them.

Should I get it?

If you are relatively new to the game or have a hard time winning matches, then it would be very useful for you. The application also doesn't use many resources, so you will not even notice it running in the background.
However, if you are a seasoned League of Legends player and know all there is about the game, this program won't be of any use.