[NEST] Playing Defense or Attack?

Defense or Attack?
This is a common question in Dragon Nest.....
But do note that IT IS POSSIBLE to play DODGE in Nest.

For Me:
Job with good def like Saint & Barbarian can play Atk
Job with low def MUST go for Defense

Why? Job with low Defense especially Mage imagine if you slipped your movement and got hit by one of the Boss Skill? 1 Hit KO? Whats the Point of playing High Attack when you got yourself killed so Fast?

The reason of playing Defense is to make sure you continue the game not getting yourself kill in 1 hit..... Think about it carefully.... Defense is indeed VERY IMPORTANT in NEST