There are different builds. The most comon are PURE and HYBRID.
Pure:
STR: lvl+4 requirement for light armor. (example: lvl 40 -> 44 str)
AGI: everything else
CON: nothing
INT: nothing
-> every lvl: 1 str, 4 agi
Hybrid:
STR: lvl+4 requirement for light armor. (example: lvl 40 -> 44 str)
AGI: min 3 agi every lvl (to wear best possible weapon)
CON: depends on how much u wanna put in agi.
INT: nothing
-> every lvl: 1 str, 3 agi, 1 con (normal hybrid)
-> every 2 lvl: 2 str, 7 agi, 1 con (optional)