Every Pokémon after the third generation (Ruby, Sapphire and Emerald) has a nature. These are special things
that boost one stat and lessen another. However, some don't, and the stats stay the same. Here I have made a table
of all the Natures and which stat they boost.
+ = More
- = Less
If the square is blank, nothing happens to that stat.

Hope you find this useful!