Quote Originally Posted by haxz0r View Post
A.Let's say you have 900 atk or mag, 100% crit dmg, 50 rate and let's say 18 amp (bracelets+suit+eox) and your opponent has 650 def.
By using a fast, low dmg skill (let's say +200 add dmg and 30% amp) you would deal 882 normal dmg and 1764 crit dmg. Adding 1% amp you would deal 891 normal dmg and 1782 crit dmg. Adding 2% crit dmg would give these results: 882 normal dmg and 1781 crit dmg.
By using a gm or completer skill (let's say +850 add dmg and 70% amp) you would deal 1892 normal dmg and 3784 crit dmg. Adding 1% amp you would deal 1901 normal dmg and 3802 crit dmg. Adding 2% crit dmg would give these results: 1892 normal dmg and 3821 crit dmg.

B.Now let's say you have the previous mentioned stats but your opponent has 1200 defense.
By using a fast, low dmg skill (+200 add dmg and 30% amp) you would deal 332 normal dmg and 664 crit dmg. If you add 1% amp you would deal 341 normal dmg and 682 crit dmg. Adding 2% crit dmg would give these results: 332 normal dmg and 670 crit dmg.
By using a gm or completer skill (+850 add dmg and 70% amp) you would deal 1342 normal damage and 2684 crit dmg. If you add 1% amp you would deal 1351 normal dmg and 2702 crit dmg. Adding 2% crit dmg would give these results: 1342 normal dmg and 2710 crit dmg.

Lets check the dps of the skills now:

Under A. conditions,
Low dmg skill (2s cast time) = 1323 DPS.
With 1% amp = 1336 DPS.
With 2% crit dmg = 1331 DPS.

High dmg skill (3s cast time) = 2838 DPS.
With 1% amp = 2851 DPS.
With 2% crit dmg = 2856 DPS.

Under B. conditions,
Low dmg skill (2s cast time) = 498 DPS.
With 1% amp = 511 DPS.
With 2% crit dmg = 501 DPS.

High dmg skill (3s cast time) = 2013 DPS.
With 1% amp = 2026 DPS.
With 2% crit dmg = 2026 DPS.
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As you can see, amp is good for low skills and crit dmg is good for high skills. But keep in mind that the amount of crit dmg that you can have on 1 item (weapon or helm) is more than double the amount of amp you can have (no talking about ideal sets). Thus, a weapon/helm with more than 30 crit dmg is better than one with 14% amp (same material and grade ofc).

I hope this helps.
Stopped reading here. This calculation is completely and utterly wrong.