Quick Void Staff Question

Koharix·3/30/2016, 7:24:33 PM·3 votes·1,175 views

Void staff use to ignore 35% of Magic Resistance. Meaning that if they have 100 MR they will effectively have 65 MR vs a user that has void staff.

But now void staff is +35% Magic Penetration. So if I understand correctly, this means that having void staff makes you have 135% your Magic Penetration. For example if your only Magic Pen is from Sorcerer's Shoes (+15 magic pen) you will have 15+5.25 for a total of 20.25 magic pen. Meaning it's passive is useless on APCs that have no magic pen.

Is this how void staff works? Is it considered a buff or nerf from the old ignore 35%? I have several champs that I play which I build magic pen over ap which is why i ask when to use this item.

4 Comments

Laughing Fish3/30/2016, 7:27:47 PM1 votes

It ignores 35% of their magic resist calculated AFTER reductions and BEFORE flat pen.

The order of magic penetration is as follows:

Magic reduction, flat.
Magic reduction, percentage.
Magic penetration, percentage.
Magic penetration, flat.

Abyssphere3/30/2016, 7:34:55 PM1 votes

It works the same as it ever did. Unique Passives are always formatted like that, it's just a little bit unclear in percentage cases like this. Haunting Guise says "+15 Magic Penetration", which literally just means "This gives 15 MPen". Void Staff saying "+35% Magic Penetration" doesn't mean it increases your magic pen by 35, it means it gives you 35 percentage pen.

If you look at your champion's stats in-game before and after you get Void Staff, you'll notice your flat pen number doesn't go up by 35%. The percentage pen stat just gets 35 in it.