Fully Explain Damage Reduction Please?

[Lokeal_The_Flame]

For Example will DR 10/good Stack with DR 7/Cold Iron?

[Violith]

For Example will DR 10/good Stack with DR 7/Cold Iron?

no, the dont stack. they overlap incase something bypasses one of your DR's. so if someone bypasses your good DR, without Coldiron to go with it, you'd still be protected by 7DR.

would advice to look here http://ddowiki.com/page/Damage_Reduction

[gwonbush]

For Example will DR 10/good Stack with DR 7/Cold Iron?

Only the highest damage reduction applicable to an attack works. After DR is applied, then PRR is applied.

For instance, say you have DR 10/good DR 7/Cold Iron and 50 PRR (33.33% reduction). You are hit with a normal attack of 100 damage that bypasses no DR. As your strongest DR is 10/good, that reduces the damage to 90. With your 50 PRR, that damage is then reduced to 60.

If the 100 damage hit was good aligned, but not Cold Iron, it would deal 93 damage instead, reduced to 62 by your PRR.

If it was Cold Iron, but not good, it would be identical to the first instance, dealing 60 damage after PRR is calculated.

Finally, if the strike was both Good AND Cold Iron (I don't think any monster does this, but you never know), it would bypass all your DR and only your PRR would reduce the damage, making you take 66 damage from the swing.

As you may have noticed, PRR is significantly more powerful against high damage totals than DR.