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Just take Teleport. And follow A glasscannon build that starts with lantern ghostblade.
or Hanyuyu's yi, asia high elo. its a high armor high hp yi build against physical dmg teams. taken with exhaust or flash. go lantern, zerkerboots, Sword of the devine, Warmongs, Atmas.

Thanks for putting this up here, saves me alot of time to look everything up :P.

As for the question "Why does Strelo takes these items?" i think the correct awnser is.
Strelo is looking for a well balanced, Cheap, Master yi while Being able to push the enemys carrys to 0. It also makes a gradual growing lvl of both surv and dmg.

Thats why he starts with Trinity force, it boosts almoste every stat while giving him a much needed slow. The banshyveil because of the shield hp and together with Trinforce gives a nice mana pool so you dont have to worry about going out of mana because of the highlander constant skill refreshment.
BC and Ghostblade for shredding armor and for both boosting attack dmg + attackspeed.

All you need right?
And this for a low price, since must Ranked games dont take long so its best to get money effeciant items.
As for why he runs so much Magic resistants there can be two awnsers that can be considered.
In todays meta game there are almoste always 2 AP dmg dealers so you want to counter that.
or He doesnt see physical dmg dealers as much of a threat.
As for ghost. Escape mech always handy especialy for a champ that whill be focussed down. So flash/ghost/exhaust always good. Exhaust because you can just come in from the side. Exhaust AD carry and kill the AP carrys and because you have 3k hp and alot of mr you'll prop survive that.
and Ghost just fitted best in his play style i geusse.

This Strelo yi is a good all around Master yi, wich can easly addapt to situations.
As for Other Yi builds. You can go Backdoor +Glasscannon yi from MonsterBall

YOU CRAZY

GENERALY good guide but i dont understand why you choose ap! Master Yi needs more attack spped and dmd and less ap! If you want take a look a my guide. THANKS

Pretty awesome guide! :D

Thank you for this, dude. I'll try it out :D

don't laugh at my teemo scores

+1, because, not only does it offer information on HOW to jungle but how to do it in more ways than one.

Honestly before reading this, i was very weak in the jungle department (Yi, being my main...) which is kinda sad. Every time my teammates ask me to jungle in champion selection, i kinda frown.

But no more!

GJ

In my opinion, it is a better idea to buy cloth armor instead of long sword as you will be slightly slowed down by waiting in the base.

The Trinity Force is a much better idea than a Phantom Dancer; I would willingly trade 20% Attack Speed and 15% Critical Chance for a bit of HP, MP, AD, AP, one slow, and the ability to glow red. The slow can be thought of as a bit useless, as Yi is already a chasing freak. However, Trinity Force provides the HP Yi desperately needs, the MP so he can continuously spam his spells that have reset CDs (you really don't need much more), a small amount of AD and AP, and two nice procs.

Banshee's helps Yi even more (HP and MP and a shield). I may in some situations trade it for Wit's End, to fill in the attack speed hole caused by trading PD for Trinity IF they are lacking in CC.

Mercury Treads should only be taken in place of Berserker's if they have heavy CC (which they do in high ELO.

And Wriggle's fills in the armor part.

I like how in one of the ranked games there is the score of 0/0/0. Haven't tried this build out myself, looks solid enough. The only thing I could disagree with, again haven't tried it out so take what I say with a grain of salt, would be the Trin. I can see how it could be used, but it doesn't seem like a great option in terms of others it can do, although...the slow is nice. You could just get a frozen mallet in it's place though, more health and as long as you grab buffs mana shouldn't be a problem.