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[Bug] Mirror Blade damage lower than intended


Quadox.7834

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I tested MB in with no amulet or rune equipped. Results:

> 236

> 178

> 134

> 101\*

(\* only with bountiful blades equipped)

In the patchnotes and tooltip it says damage is reduced by 15% each hit. In reality:

> 178/236 = 0.75

> 134/178 = 0.75

> 101/134 = 0.75

The damage is reduced by 25%. If it were 15% it would look something like this:

> 236

> 236\*0.85=200

> 200\*0.85=170

> 170\*0.85=145

You might be wondering "maybe it is reduced twice because MB also bounces on your own character?" No:

> 236\*0.85\*0.85=170 -> Wrong.

Or maybe this unnecessarily complicated variant:

> 236-(236\*0.15\*2)=165 -> Wrong.

Tell me if I'm missing something.

 

**TL;DR: Mirror Blade damage is reduced by 25% rather than 15% each hit. Hotfix please @"Ben Phongluangtham.1065" @"Cal Cohen.2358" @"Irenio CalmonHuang.2048" or whoever.**

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> @"Quadox.7834" said:

> Considering how everyone on mes forums is complaining @ how bad mesmer is after patch we should bump this until they look into it

 

Mesmer has structural issues that make it, by far, the worst class of the 9 existing. Elites are flawed designs and core Mesmer is too underwhelming after the excessive amount of nerf waves it has received.

 

This reality is not going to change with a bugfix of a single trait affecting a single skill.

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> @"Ansau.7326" said:

> > @"Quadox.7834" said:

> > Considering how everyone on mes forums is complaining @ how bad mesmer is after patch we should bump this until they look into it

>

> Mesmer has structural issues that make it, by far, the worst class of the 9 existing. Elites are flawed designs and core Mesmer is too underwhelming after the excessive amount of nerf waves it has received.

>

> This reality is not going to change with a bugfix of a single trait affecting a single skill.

 

Sure but here we don't need to convince them to make any particular changes, just to fix a bug.

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> @"Stand The Wall.6987" said:

> I think what they're doing is reducing it like 15% of 1k 30% of 1k etc. instead of each new value. regardless its damage is way too low, same goes for all classes # 2 weapon skills. its only doing 3k on medium golem with zerk amulet lol (pretty sure I had fury too).

 

I don't understand what you mean. I already went through the example of 236-236*0.15=201. Which is wrong.

 

Or maybe you mean total damage:

236+178+134=548 (let's go without trait).

548*0,15=82,2

236-82,2=154

154-82,2=72

If this is what you meant, it is also wrong as you see.

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> @"Quadox.7834" said:

> I tested MB in with no amulet or rune equipped. Results:

> > 236

> > 178

> > 134

> > 101\*

> (\* only with bountiful blades equipped)

> In the patchnotes and tooltip it says damage is reduced by 15% each hit. In reality:

> > 178/236 = 0.75

> > 134/178 = 0.75

> > 101/134 = 0.75

> The damage is reduced by 25%. If it were 15% it would look something like this:

> > 236

> > 236\*0.85=200

> > 200\*0.85=170

> > 170\*0.85=145

> You might be wondering "maybe it is reduced twice because MB also bounces on your own character?" No:

> > 236\*0.85\*0.85=170 -> Wrong.

> Or maybe this unnecessarily complicated variant:

> > 236-(236\*0.15\*2)=165 -> Wrong.

> Tell me if I'm missing something.

>

> **TL;DR: Mirror Blade damage is reduced by 25% rather than 15% each hit. Hotfix please @"Ben Phongluangtham.1065" @"Cal Cohen.2358" @"Irenio CalmonHuang.2048" or whoever.**

 

Mesmer doing less damage than intended, nothing to see here.

Likely won't get fixed, ever. Don't you all have other classes?

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  • 2 weeks later...

Hmm, I didn't take vulnerability and might into consideration in the OP.

Tests were done with no amulet or rune (power = 1000), on a light golem (2185 armor), running domination traitline.

 

Let's use this formula:

> Damage = Weapon Strength * Power * Coefficient / Armor

First let's first find out greatsword weapon strength using Mind Stab as a test:

> Weapon Strength = Damage * Armor / (Power * Coefficient) = 1012

This must be the weapon strength of greatsword. Let's test mirror blade now. Damage = 236+178+134.

But for the first hit we have 0 might 0 vuln, second hit we have 3 might 3 vuln and last hit we have 6 might 6 vuln. Let's modify the formula:

> Damage = Vulnerability * Weapon Strength * (Power + Might) * Coefficient / Armor

Or...

> Coefficient = Armor * Damage / (Vulnerability * Weapon Strength * (Power + Might))

Where each stack of vulnerability is 1.5% and each stack of might is 30 power. Let's calculate the coefficient of each hit of Mirror Blade:

> 1: Coefficient = 2185 * 236 / (1.0 * 1012 * (1000 + 0)) = 0.51

> 2: Coefficient = 2185 * 178 / (1.045 * 1012 * (1000 + 90)) = 0.337

> 3: Coefficient = 2185 * 134 / (1.09 * 1012 * (1000 + 180)) = 0.225

So for example we get 0.337 / 0.51 = 0.66, and 1 - 0.66 = 0.34, so the damage is reduced by *34%* (rather than 15% by the tooltip or 25% by the OP). Even more confusing than before, either I am missing something or this Mirror Blade is weird af.

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> @"Quadox.7834" said:

> Hmm, I didn't take vulnerability and might into consideration in the OP.

> Tests were done with no amulet or rune (power = 1000), on a light golem (2185 armor), running domination traitline.

>

> Let's use this formula:

> > Damage = Weapon Strength * Power * Coefficient / Armor

> First let's first find out greatsword weapon strength using Mind Stab as a test:

> > Weapon Strength = Damage * Armor / (Power * Coefficient) = 1012

> This must be the weapon strength of greatsword. Let's test mirror blade now. Damage = 236+178+134.

> But for the first hit we have 0 might 0 vuln, second hit we have 3 might 3 vuln and last hit we have 6 might 6 vuln. Let's modify the formula:

> > Damage = Vulnerability * Weapon Strength * (Power + Might) * Coefficient / Armor

> Or...

> > Coefficient = Armor * Damage / (Vulnerability * Weapon Strength * (Power + Might))

> Where each stack of vulnerability is 1.5% and each stack of might is 30 power. Let's calculate the coefficient of each hit of Mirror Blade:

> > 1: Coefficient = 2185 * 236 / (1.0 * 1012 * (1000 + 0)) = 0.51

> > 2: Coefficient = 2185 * 178 / (1.045 * 1012 * (1000 + 90)) = 0.337

> > 3: Coefficient = 2185 * 134 / (1.09 * 1012 * (1000 + 180)) = 0.225

> So for example we get 0.337 / 0.51 = 0.66, and 1 - 0.66 = 0.34, so the damage is reduced by *34%* (rather than 15% by the tooltip or 25% by the OP). Even more confusing than before, either I am missing something or this Mirror Blade is weird af.

 

im bored AF waiting for pizza, wanna test it properly ?

we could set up clone to bounce hits between me and the clone, so the might wouldnt be an issue.

just the vulnerability

 

EDIT im eu

 

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> @"Leonidrex.5649" said:

> > @"Quadox.7834" said:

> > Hmm, I didn't take vulnerability and might into consideration in the OP.

> > Tests were done with no amulet or rune (power = 1000), on a light golem (2185 armor), running domination traitline.

> >

> > Let's use this formula:

> > > Damage = Weapon Strength * Power * Coefficient / Armor

> > First let's first find out greatsword weapon strength using Mind Stab as a test:

> > > Weapon Strength = Damage * Armor / (Power * Coefficient) = 1012

> > This must be the weapon strength of greatsword. Let's test mirror blade now. Damage = 236+178+134.

> > But for the first hit we have 0 might 0 vuln, second hit we have 3 might 3 vuln and last hit we have 6 might 6 vuln. Let's modify the formula:

> > > Damage = Vulnerability * Weapon Strength * (Power + Might) * Coefficient / Armor

> > Or...

> > > Coefficient = Armor * Damage / (Vulnerability * Weapon Strength * (Power + Might))

> > Where each stack of vulnerability is 1.5% and each stack of might is 30 power. Let's calculate the coefficient of each hit of Mirror Blade:

> > > 1: Coefficient = 2185 * 236 / (1.0 * 1012 * (1000 + 0)) = 0.51

> > > 2: Coefficient = 2185 * 178 / (1.045 * 1012 * (1000 + 90)) = 0.337

> > > 3: Coefficient = 2185 * 134 / (1.09 * 1012 * (1000 + 180)) = 0.225

> > So for example we get 0.337 / 0.51 = 0.66, and 1 - 0.66 = 0.34, so the damage is reduced by *34%* (rather than 15% by the tooltip or 25% by the OP). Even more confusing than before, either I am missing something or this Mirror Blade is weird af.

>

> im bored AF waiting for pizza, wanna test it properly ?

> we could set up clone to bounce hits between me and the clone, so the might wouldnt be an issue.

> just the vulnerability

>

> EDIT im eu

>

 

I wanna test the pizza!

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