This build is about surviving, and being more use in team-fights late game. Double strike is a very important move and that makes attack speed very valuable. Smite is thrown out of the equation of jungling because we aren't really a jungle, we just go there to rack up more xp and money.

Attack speed runes allow the build to focus more on defense and attack damage, also attack speed is very useful for Yi allowing more usage of double strike.

pick everything that helps with AD, and then get hardness and tough skin. with out hardness and tough skin you can not jungle. if you decide to not jungle you can replace hardness and tough skin with sorcery arcane knowledge and one point into arcane blast.

start with a Vampiric Scepter. then buy Berserker's Greaves. next is wrigglers lantern, and then Recurve bow. Depending on who your playing against decides your next items. if the team is AP heavy or there AP is getting fed get the Maw of Malmortius before you finish the Madred's Blood razor. If the enemy team has quick moving enemies then get the Frozen Mallet before you finish madred's Blood razor. But normally get Madred's Blood razor, get hex drinker, then Frozen Mallet, then get Maw of Malmortius. for the sixth item spot get Bloodthirster. Very late game you can replace wrigglers lantern with Infinity edge, or The Black Cleaver. IE for better crits, and The Black Cleaver for pushing towers, or just more attack-speed.

Get Wuju style and ultimate as much as possible. alpha strike is next important, and the heal is end game

Ignite and surge get boosted because of Summoner's wraith. when in jungle the blue is hit first, target the big monster first. use surge and Wuju style to kill it. ignite gives attack-damage when on cool-down,so make sure to use it at the very last second, if it needs to be used. ignite is perfect against guys like swain who have life-steal, or healing, and should be used when that champion starts using there healing move, like Sions ulti

kill blue buff, after an ally leashes hit the big monster hard, wait a second or two before popping surge, then wait 1-2 seconds before popping Wuju style after surge is popped. the big guy will die a little after Wuju and surge were off. Then kill the wolves next. after wolves move on to Wraiths, after Wraiths go to Golems, after Golems go back to wolves. repeat cycle till level 5 which then you can either kill the red buff, or save it. you can jungle till six, or go back at level 5 before you level up and get your Berserker's Greaves then grab blue, and if you been saving the red, go and grab it next, after the blue you should be level 6. Then hard ganking begins. When you go in for a gank, make sure they don't know you're coming then right before you alpha strike them pop surge. then while flying through the air use your ulti and Wuju style. hit them up, and right around before they use flash, or before they escape use ignite, if they don't escape you will proabably get a kill refreshing your ulti, don't worry about mana you have the blue. either go gank again, or go back to jungling

If your mid Yi try and let the mid push you, if there a stuner, try and get the kill before level 5. if you have the money, get bf sword quick, if you don't go for phantom dancers first, if the enemy mid is a stuner and you can't kill them, get them pushed, then gank a lane, once the enemy champion dies(if stuner push) if not a stuner then don't push, and feed of them. If they got stuns you must push so that you can gank other lanes easier. Mid yi is a good yi because he is ad carry and must have most xp, and most minnion kills on team. THE ONLY TIME you may solo top, is if there team is solo toping to. Yi is a 1v1 champion, unless he is build ap.