The first thing that you need to do, while creating the fighter class, is select his equipment. OF a character has more than one class, try to develop, in the first place, the abilities that are common to these classes and then, the parameters characteristic to a given class. The division has been simplified to 5 character classes: fighter, archer, wizard of the elements, battlemage and the rogue. What the individual parameters refer to, can be read in the chapter entitled 'Abilities, talents and attributes' - the chapter focuses entirely on which attributes should be selected to make the character as good as possible.
It is important to distribute them with consideration and make the character the specialist in its own field.
With time, as your character progresses, you will be receiving additional attributes, skills and, sporadically, talents to distribute.
