I have decided on the stats being vitality, strength, intelligence, speed and endurance.
While HP and MP are decided by vitality, both physical attack and defence are derived from strength.
Intelligence decides both magic attack and magic deffense while speed changes how fast the character is and endurance increases things like equip load burden.
In rpgs I have played different characters depending on how the designer wanted them to feel (i.e. a muscular brute may have a higher strength but lower intelligence) the character may have higher stats in a certain area.
While I can understand that I do not understand how I should structure stat increases that happen when leveling up. For a test character I set all of their stats equal to 10 (I decided to start all characters with a base 50 stat total for now) the characters stats should move up anywhere from 0 to lets say 9 at most when leveling up.
So what is a way to decide which stats go up and by how much when the character levels?