the lvl 3 ultimate is a miss play i was ment to get at lvl 16 but didnt notice until you guys just said

As dewo said,why not get level 3 infinite duress at 16. Also, i would get bloodrazor if you were, probably the best item for warwick when it comes to killing people. Additionally, i would suggest getting atleast 1 point in hunters call. That is probably one of my favorite skills in the game since it is global.

in a constructive way! and i dont put anyone down!

it's hard making a warwick build without Dewo putting you down, huh? ^^

oh another ww guide! :) I'll quote Evelyn "Time to feed!" /giggle

OK Downsides.
Skills - Why ulti lvl 3 on lvl 17?, Why not a single point in HC before lvl 13 aaaand if that way, why so late with AS item?
Why Infinity edge after Black Cleaver? You dont focus at all on your ultimate boosting just pure white damage (now i am even more confused than why no HC early)

If you have problems with CC champs, why not getting Mercury threads, not like the AS boost will give you much on zerker ones.

Strenght of spirit fan?
You know that it will give you 2.13hp per 5sec on max lvl with all your items?

Since this is a laning WW build i have no further comments :)