Shred resistance vs shock vs penetration doubts

General
1

Im a bit confused with the old vs new info about the this topic.
Tried to search reddit and forum but it was inconclusive…

Lets start:
"Shred does shred 5% resistance shred per stack with a stack limit of 10 (instead of 20 in old patch) stacks.

On bosses and player shred does only shred 2% per stack with the same stack limit of 10."

The 5% resistance shred and 2% on bosses is still valid ?
So maximum boss resistance shred is 20% , if applying 10 stacks boss will take 20% more damage ?

and whats the relation about shock vs shred light resistance.
Shock reduces lightning resistance by 5%, so with 10 stacks its 50% more damage taken by enemy ? I think Im missing something as shredding light resistance is generally more well evaluated than shock when reading people talk about builds, but Im understanding shock helps more to increase damage…

And Shred is additive to penetration, correct ? When we have the 3 in equation (shock + light shred + lightning pen) we just sum the 3 to calculate the increased damage ?
Lets say I have ~40% shred light resistance blessing, 10% light penetration affix in amulet and ~100% shock chance with gear., in other words I have 10% light pen and can easily stack 10 shred light resist and 10 shock in bosses.

So the increased damage the boss will take (considering 0 base resistance) will be (0,1+0,2+ 0,5) = 0,8 = 80% increased damage ?

2

lets say you cap shock, thats -20%(iirc shock also has the player/boss penalty)

thats on an enemy with no resistance(default) 1.2x damage.

if you then add shred to your build, its a total of 1.4x damage, but its 1.15~x the damage of shock. Your relative increase for adding shred is 15%, not 20%.

then you add 40% penetration to your build, your total overall multiplier to baseline damage from all these is 1.8x damage. But its 28% more damage then just using shock and res shred. not 40% more, because its relative to what you had before.

So while they are all additive, the gain you get is not additive because its relative. There is a slight loss after a point where it become cost ineffective to add more sources of penetration.

But yes the tldr is they are all additive. The only situation that this isnt the case, is if you some how stack some obscene enemy resistance modifiers through monos or have enemies that resist an element.

iirc the big scorpions that resist fire have 50% fire res. So if you had two 40% enemy resistance modifiers on high corruption, they would have 130% fire res.

in the situation of 50% shred, and 50% fire pen, they would have 25% resistance. the shred drops them to 80, but penetration only applies to the “cap” of res, which is 75, so the pen then reduces 75 to 25.

This means the shred actually has no effect, because if you didnt have shred, then their 130 res, is treated as 75 for pen, which is then reduced to 25.

if you had a boss who had 15% res from a modifier, and you have 20 shock, 20 shred, and 40 pen, you would reduce their res to -25, then pen for 40 for a total of -65, which would be 65% more damage taken. and it would be 80% more damage taken if they didnt have a res modifier.

edit: Can confirm, shock is also reduced against players/bosses. so is equal to lightning shred.

2 Likes
3

oh I see, I remember reading this through the forum, thanks for pointing it out. Thats why if I have 20% increased damage from shock ( easy to get) and 20% increased damage from shred light resist (standard for light damage builds) most times it wont be very usefull to get aditional lightninng penetration (a more realistic value I would put 10% affix in amulet), because its relative addiotinal damage wont be that good and it take an important slot that I can put better stats.

4

Another thing I would like to clarify.

If I want to get just one of the two sources of increasing damage by reducing the resistance, both shock or shred work the same way?
All the same using shock or shred light, they will both give the same result of getting 20% More damage with 10 stacks?

So I should aim for shock, since it’s a lot easier to get, and come with a bonus to increase chance to get stunned.
To get Shred light resistance you need to farm a blessing and give up some other good options in this blessing slot (critical multiplier being one of them).
All this considering I just want one of the two.
Am I right in my thinking?

5

Depends. The blessing if you can proc it fast is still 15%~ more damage

The multi blessing is also not on lagon, its on black sun.

Lagon does however have stuff like up to 100% lightning damage, and flat mana(depending on build, this is damage multiplier as well.)

So you would need to compare 15% more damage vs the other options to see what is better.
going from 600 inc damage to 700 inc damage is 8x/7x = 1.14, so anything less then 600 inc damage and a max rolled lightning inc is gonna be better then shred.

But in some cases even if you only want one, the shred will be more powerful then all other options in the slot anyways.

3 Likes
6

my bad, confused it, yeah, I looked the guide and the other usefull thing would be 100% increased light damage.

so Ill take a real example, my char has 300% increased spell and 600% increased light damage without any blessing from Lagon. My damage comes from proc.ing “Lightning” with tornados. The sub skill has Light / Spell / Area and Attunement tags. Attunement have 25 points and increase the damage for another 100%. I guess I have to add the damage from attunement since to my knowledge it does not show added to the damage tab from char.
If Im not mistaking anything I just sum the source of increasing damage and the skill have 1000% increased damage, correct ?

and the penetration side: I have shock easily capped at 10 stacks. And I have passives in druid and shaman tree that give 5% pen + 7% elemental pen = 12% light pen, I will round it to 10% light pen to facilitate.
so 1.3x increased damage (10+20 less resist) = 1.300,00% increased damage.

Now I have to decide if I take ~100% inc light damage or ~50% chance to shred light resist.
increased light damage = 1.000% to 1.100% = 1.2/1.1 = 1,09 more damage.

50% shred (easily capped 10 stacks) 20% less resist. taking all thre (20+10 + 20) would 1,5x more damage = 1.500,00% increased damage. From 1.300 to 1500 would be 1,15 more damage ?
Thats the way to calculate ? then shred is better.

7

Taking the oportunity, with my real example,
Now I have to decide prefix for amulet. The options for damage are
1 -Critical Multiplier (29% t5)
2 - penetration (9% t5)
3 - Increased light damage (70% t5).

My char have
250% critical strike multiplier.
50% penetration (20% from shock 20% from shred and 10% from passives).
1.000,00 % increased damage.

Can someone confirm my calculations ? The order would be increased damage * critical multiplier * penetration

crit mult : 250 to 279 = 1.000% * 2,5 * 1,5 = 3.750 % increased damage.
1.000% * 2,79*1,5 = 4.185 %
1,116 more damage.

penetration. 1,5 to 1,6 = 1.000 * 2,5 * 1,5 = 3.750%
1.000 *2,5 *1,6 = 4000%
1,066 more damage.

increased damage: 1.000 to 1.070% = 1.000 * 2,5 * 1,5 = 3.750%
1070 *2,5 *1,5 = 4.012%
1,070 more damage.

Critical Multiplier takes the cake, correct ? :thinking:

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