Source link: http://www.arcgames.com/en/forums/neverwinter#/discussion/1216600/negation-on-dr-cap?sso=eyJuYW1lIjoiIiwicGhvdG91cmwiOiIiLCJjbGllbnRfaWQiOiIxNDQzOTY4OTgxIn0=+73c0612ec650d7e7b1cab420f7f7d138582611d0+1471404733+hmacsha1schietindebux said:Cap is 80%, as far as I know you can stack every stat as much as you want, all curves are linear for main stats like Power, crit, recovery, HP, DR
Arp is not linear it is getting less rewarding at about 20k
AP gain, incoming healing, stamina gain, combat advatage are softcapped, above 1500 its wasted, most stick with 1000.
So stacking DR only serves inderect to your group buff from ITF, but T Negation also adds 10% Inc healing and recovery, wich makes the enchant BIS, esp. for tanks
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Off the top of my head but it's roughly thereabouts.
Armour Penetration 60% is enough for all mobs/bosses in PvE.
Damage Reduction is capped at 80%.
There is no point going above 100% Critical Chance.
AP/CA/Stamina/IncomingHealing Gains have dimishing returns, going above 1500 is not worth it.
Other stats are linear, Critical chance and Power being most important DPSwise.
I'm not sure about Cooldown Reduction & AP Gain if going above 100% is worth it (possible at least on DC, maybe OP too).
(8*1.42) - (8*1.42) / (1+((((1/(( level*0.06)^2) )+0.148) * stat / (800/60) )/8)^1.42) )*0.01
Check if you copied good, for stat = 1000 & level = 70, it's should be 8,13%.