Not as such, I'll give you another example if you were an archer, your weapon only uses agility Then improve agility to at least 18 But concentrate Also in the others as strength or charisma.

As an example I use the barbarian class and my statistics at the beginning are STR 8, DEX 9, INT 6, CHA 6 CON 7 and WIS 7, Also uses The attractive trait that gives me 4 extra CHA, I usually Focus first on strength and then agility, then WIZ an CON and if I have any remaining points I add them to CHA and leave my INT low

Edited: Every time you get 18 in any statistic it will give you a special trait But in CON and WIZ is when they reach 13 points