I personally main Yi jungle (Cowsep made my day)
One my most played build is :
Skirmisher Blade - Devoror , Blade of the Ruined King, Youmuu Ghostblade , At this point of my build i'll choose on what i will go (Full ad if i'm fed , a bit tanky , etc etc) , If they got hard CC i'll go for a QSS . if the game is going normal i just pick a Black clever for some HP and a bit of armor penetration , then i'll rush last whisper and randuin. if i get really CC i just go for some Tanky item to made them rage as i meditate in teamfight.
Now let's go to the new jungle meta , here it is , vayne , the jungler tank killer !
(Op as fk aswell)
In the current tank meta , vayne is way too op to kill enemy jungler tank and any tank that try to do yolo thing in front of you. , the E is pretty good to gank and of course the barrel roll help a lot.
Good outplay potential , in both game , enemy jungler was tanky and i can sh*t on him in 5 sec. Was pretty fun, try if you can ; Also pick ignite to go counter jungle if enemy jungler is a rengar (rengar is so weak in is first clear and he is free ..soooo a lot of people will play him).