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# pierce question

Discussion in 'Amazon' started by JonnyFoster, May 2, 2008.

1. ### JonnyFosterIncGamers Member

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pierce question

Hi there, this has probably been asked before so sorry in advance i couldnt find the answer.

is the pierce given by razortail 100% ? if not what % is it?

basically my question is.. if im using razor tail do i need to invest into the pierce skill?

Thanks!

2. ### fullflavorIncGamers Member

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Re: pierce question

razortail gives 33% to pierce. so yes you need to invest if you want to imrove the numbers. if not you dont have to invest anything and you get 33% from razortail.

3. ### StevomooIncGamers Member

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Re: pierce question

is it capped at 95%

4. ### RTBIncGamers Member

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Re: pierce question

Pierce chance is not capped. But for a missile to have a chance at piercing, they need to pass the to hit check first. Note that missiles like LF have no hit check and will pierce every time if you have 100%.

5. ### AlleriiIncGamers Member

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Re: pierce question

Not quite true. If you want more comprehensive answer take a look here
Its actually not so simple.

Last edited: Oct 9, 2008
6. ### UglaIncGamers Member

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Re: pierce question

The post Allerii linked ignores the fact that pierce is limited up to 5 hits total, i.e. one missile can only pierce 4-times. Besides, the math is incorrect anyway :smiley:

If p denotes the base chance to pierce (from Pierce skill&items), then p^n represents the chance to pierce AT LEAST n-times. The chance to hit EXACTLY n targets (including the first one) is therefore:

p^(n-1)-p^n for n<5
p^4 for n=5
0 for n>5

I agree though, that Pierce returns are not diminishing in terms of damage output, as long as you target sufficiently large packs. I made a table reflecting these relations within the Fury guide.

Since we don't know much about how D2 generates "random" numbers, the relations may as well be pretty irrelevant - note that the considered events come in a very short time-scale, and thus their independence is a very optimistic assumption :laugh:

With no cap on the chance to pierce, it's pretty easy to reach 100% with the aid of 33% from Razortail, and get the insidious RNG out of our schemes :evil:

7. ### AlleriiIncGamers Member

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Re: pierce question

Perhaps you can try to read all five pages the thread contains, not just the first post in it:wave: