Master yi is typically known for his ability to 1v5. Well, some times that's not the case, especially when you got a fizz or someone that could just instant kill you without you being able to do anything. Well, look no further! This build will make sure that you wont get instant killed every teamfight, and if anything, keep you in the teamfight way longer then you normally would.

Yi is very reliant on his Q. Most people make the mistake and use it as a gap closer, which isn't the case in most scenarios. A good yi player uses his Q as a way to dodge, say a TF gold card. If you Q Tf in the moment where his gold card is flying at you, will will dodge it completely. Although, this doesn't mean you shouldn't Q to a immobile adc such as jinx when she's alone or when you're ganking say level 3 or 4.

I usually gank at level 3 when I have my red buff and ghost, and I normally go Krugs>Red>Raptors>scuttle>bot. You should clear that at about 3:45 to 3:50.

You pretty much want to go full attack speed runes, for this offers the best outcome. You could also go for AD Quints with resistant seals and glyphs, but I just prefer the attack speed for your Q cooldown.

Max Q first, then E, then W, R whenever you can.

PROS
Tankier so you can last longer
1v1 anyone
Split push better
Better and healthier jungle clears
CONS
Doesn't do as much damage as on-hit yi.

Try to get 60 farm in the first 10 minutes, if you do this, it doesn't matter if you havn't ganked or got any kills. Yi is a power farmer in the jungle, so the most gold he gets, the stronger you become. I'm not advising to not gank, but ganking pre 6 is nearly impossible without set-up and red buff, and people setting up in gold under is something you're going to see.