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Why are MPen runes so weak?

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JudoPunch

Senior Member

10-06-2010

Because, after you do the math. You will never buy flat ap for damage again because M-pen is so much more powerful.

Ex- 40 mr = 30% reduced damage.

1000 damage attack= 700 damage

At a 1-1 ap ratio you need 300 ap to make up for 40 mpen.


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Ravel

Senior Member

10-06-2010

b/c armor is cheaper than magic resist and most characters don't get magic penetration/level.

If their squishies aren't building MR you rarely need more than 30 MPen which is 9 marks, 1 quint and sorc shoes (or 20 other mpen from some other item like a haunting guise/abyssal scepter) to be doing full damage to their squishies.

You need much more armor pen to be doing full damage to just about anybody.


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LaMilton Taeshan

Senior Member

10-06-2010

Quote:
JudoPunch:
Because, after you do the math. You will never buy flat ap for damage again because M-pen is so much more powerful.

Ex- 40 mr = 30% reduced damage.

1000 damage attack= 700 damage

At a 1-1 ap ratio you need 300 ap to make up for 40 mpen.


fail


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Munkey20

Senior Member

10-06-2010

Magic penetration runes have low numbers because you don't need alot to be effective. With a book that has all the magic pen possible you are sitting at around 15 Magic penetration. That is half of most characters starting magic resistance and most characters don't gain anymore as the they level up. Add this in with most players not adding magic resist unless they really feel like it and you are getting rid of half of an enemies protection from spells for the whole game before you buy a single item. Add in Sorc shoes and that is 35 which in most games is all you will need, but if someone does decide to stack MR, you just get a Void staff and there goes another half of their MR.

TLDR: It only take a drop of MagPen to be effective so they aren't weak.


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JudoPunch

Senior Member

10-06-2010

Quote:
LaMilton Taeshan:
fail


Pray tell good sir.

http://eu.leagueoflegends.com/board/showthread.php?t=34810


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The Promise

Member

10-06-2010

I would imagine it's because of 15% from Masteries that you can get as any spec and the fact that Magic Resist is harder to come by, and base levels are lower on champions.


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