(click image to go to information)
Below is a table that will help you identify and track the growth of your Primarchs. Under each Primarch type, each level has listed the Att - Def - Troops - Spec. This means the Attack Power, the Defensive Power, the maximum troops it can hold, and the details of it's specialty (such as debuff, trap time, and taunt time).
To see more information, please visist the Primarch Page!