AGI + STR or AGI + DEX?

which stat is better? And why?

 

Str, because it gives crit damage. Dex gain is too low to even compete with that

 

Depend you want High damage or stable Damage,

If go for AGi300>STR247, you got higher critical damage, and small ASPD boost ( 1STR = 0.1 ASPD)

if go for AGI300>DEX247, you got additional +6 stability which minimize your damage floating rate and can minimize the stability Reduce by using Annihilator ( -10 stability at level 10), also increase accuracy , which also mean reduce graze(not much), , slightly damage increase (1DEX=0.5 ATK) and some CSPD ( 1DEX=2.94 CSPD)

 

If you are overly enthusiastic then go INT = AGI > DEX
OR go INT > DEX ignore the Martial and Crusher trees altogether.