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Void Staff & Archaic Knowledge Mastery

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MrToasty

Senior Member

11-13-2010

Archaic Knowledge = 15% Magic Pen.
Void Staff = 40% Magic Pen

When you get both it only shows 49% Magic Pen. Why is that?


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Valhirien

Senior Member

11-13-2010

Cause it doesn't add up. Someone did the maths somewhere, but can't remember where. However Archaic Knowledge (mastery) and Staff (item) are calculated somewhat like life steal (i think) or separately.


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Fluffy1

Senior Member

11-13-2010

% pen stacks multiplicatively, its taking 40% off the 15% from the mastery(which is 6%) giving you diminishing returns to 49%


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Shining Silver

Senior Member

11-13-2010

It doesnt purely stack.
Let's say the enemy has 100 MR
Void Staff will get it to 60 MF
then Archaic Knowledge will take 15% of the 60 MF left. Making it 51 MF. Therefore 49% Magic Pen.

Same results if you take Archaic knowledge first, then Void Staff.


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MrToasty

Senior Member

11-13-2010

Quote:
aSilverDragon:
It doesnt purely stack.
Let's say the enemy has 100 MR
Void Staff will get it to 60 MF
then Archaic Knowledge will take 15% of the 60 MF left. Making it 51 MF. Therefore 49% Magic Pen.

Same results if you take Archaic knowledge first, then Void Staff.


Thank you!


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