Hello ZeroXX

I'd like to critizies "a few things" about your guide, that you might not have noticed, yet.
first of all:

What is you guide all about? tanky? damage? non of both?

let me have a look at your itemadvice first;

ah so your a going for a very common yi build with phantom dancer, bf sword (for whatever BT, BC or IE)
then there comes the warmog ... hmm wait ... you want to be not so squishy? but warmog? hmm okay anyway,
you go frozen mallet next, ah so the enemy can't escape that easy ... then IE ... oh. a bit late, istn it?
an by the way, this build is so freaking expensive, can you even build it in a pvp game?
hmm and there is another fact i noticed ... where are your boots? you sell them? seriously, you have very
high attack speed, also pretty much health ... but ... you're like an elephant wearing a minigun, doing heavy damage and beeing hard to kill, but the enemies will just laugh at you and run away o.O

then i had a look at your masteries ... 22(!?)/0/8 ... ehh ... looking at your items, i think you want to build a tanky yi, BUT, why not skilling defensive tree then? ...AND your going for AP and magicpen?! .. well correct me if im wrong, but you gain a total of 0,6-10,8 AP in TOTAL! through your runes, masteries and equipment ...
well ... i dont think there are any further comments necessary on that one.

all in all this guide isn't very good. you should think about going for armor, mdef, less than health ... going for boots and totaly changing your masteries wouldn't be wrong either.

ewww an one last thing, do not EVER ( ever ever ever ! ) name you Build "Pro Yi", especially when it is definetly not!

good look with a new try!