When to go Cri?
Towards the 60+ area of the game you'll find more and more Knights and Mages go crit. Sometimes it pays off and they deal more damage and win, other time it doesn't and they don't crit enough and lose damage had they gone Will Destroyer.
It takes a lot of time and effort to get to the point that critical performs better than Will Destroyer, when going critical you sacrifice a lot of defense or HP.
First of all, before even attempting going critical you must obtain a Legendary PVE set. This is a must have, the extra socket allows you to have more defenses than someone in PVP set.(You will be able to use 4 gems instead of 3)
Second you want to achieve 4000 or more critical to have a decent chance at landing critical strikes and deal more damage than a Will Destroyer counter part.
Below are the ways to obtain a higher crit stat;
- Critical Gems
- Soul Engraving
- Astrals
- Imperial Commander/Lord Divine Medallion
- Refines
That's it. Those are the only ways as a Mage or Knight to obtain it.
Be sure to get yourself a Determination astral too (Critical Damage increased by x%)
Once you do go crit, your priorities will change to achieving as much critical rating as possible before getting more MATK. Because going critical build won't help much if you fail to land a crit.