Let's talk about Void Staff

Variks·Jan 24, 2019·3 votes·1,234 views

This item has been portrayed incorrectly for as long as I can remember. It says it gives +40% magic pen. However, it actually ignores 40% of magic resist. +40% is the same as multiplying by 1.4. In this case the subject is penetration, so you would multiply your penetration by 1.4 to get the new bonus, but the item does not do this. Otherwise it would only give a bonus when stacked with other pen items. For example, 0 magic pen multiplied by the 1.4 bonus is 0. If you have 18 magic pen, then with void staff, you should technically have 25.2 magic pen. This is not the outcome, and that is because the item mitigates 40% of any given enemies magic resist. It does not give +40% magic penetration. Riot needs to change the item description to ignores 40% of magic resist.

Please bump this for Rito officials to see. It has been annoying me for years that they don't know how to use % values correctly.

7 Comments

Who Fed RuJan 24, 20192 votes

I think it's clear enough that flat and procentual pen are two separate things in League. Else it would be called something like "increases your flat pen by 40%".

It's not even incorrectly used because at the beginning you have 0% magic pen, and 0% + 40% is 40%. The only thing that might be incorrect is that % pen doesn't stack additive, but that is something else again.

VariksJan 24, 20191 votes

Everything you said is wrong. They don't do resist by %. They do it by number that scales and is converted to %. For example, you start the game with like 20-30 mr and that's somewhere around 25% magic resist. So the 40% reduction applies to the actual number representing magic resist. So if you have 100 mr, you now have 60 mr. That doesn't mean you have 60% magic resist, it means you have 60, which is converted to around 37-38%. It's not 0% + 40%. it's a number+40% which is the same as saying number(1.4). You're way off on everything with your response, have you even played league??

Who Fed RuJan 24, 20191 votes

{quoted}

Everything you said is wrong. They don't do resist by %. They do it by number that scales and is converted to %. For example, you start the game with like 20-30 mr and that's somewhere around 25% magic resist. So the 40% reduction applies to the actual number representing magic resist. So if you have 100 mr, you now have 60 mr. That doesn't mean you have 60% magic resist, it means you have 60, which is converted to around 37-38%. It's not 0% + 40%. it's a number+40% which is the same as saying number(1.4). You're way off on everything with your response, have you even played league??

What?

Ofc magic resist is a flat number, but what I've said is that magic pen is divided into 2 stats. The Armor and magic pen stats are divided and look like this for example: 20 | 40%, meaning you have 20 flat pen and 40% percent pen. You can check that by pressing C in game if I remember correctly.

Idk, you say I'm off on things but talk about me saying something about magic resist while I clearly talked about pen stats the whole time. I know how magic resist works and that that is a single number with a nonlinear function which represents the percent value the damage is reduced in the end. But that is something entirely different.

The MR stat is a flat value, but the pen stat is divided into 2 stats:

Flat pen, which is the flat amount of MR you reduce your opponents MR value by when damaging him.

And % pen, which is the % amount by which you reduce your opponents MR when damaging him. The rule here is that the % reduction applies first to the enemies MR, and then the flat pen is subtracted after.

So if your MR pen stats say 20 | 40% and you attack an enemy with 100 MR, he has (100 - 40%*100) - 20 = 60 - 20 = 40 MR after that left.

So if void staff gives +40% magic penetration, it means that your % magic pen stat is increased by 40%, because it starts at 0%. Nothing else.

TesladinJan 24, 20192 votes

Every time my third item on Lux wawaweewa is a good gun!

VariksJan 24, 20193 votes

This literally made no sense. Please get some sleep.

TesladinJan 25, 20191 votes

{quoted}

This literally made no sense. Please get some sleep.

I was talking about void staff dumbass

SolicitudeJan 24, 20191 votes

You are confusing two things. Magic resistance is the numerical value, like 100. Magic damage mitigation is the percent value, as 30%. Magic penetration reduces your magic resistance by a certain amount. Void staff "gives 40% magic pen" means that it gives you the ability to ignore 40% of the enemy's magic resistance. If it said "increases your magic pen by 40%" , then it would be what you said about the 1.4 multiplier factor.