if he is farmed, like, he a has a butterfly and a radiance, you are dead. add to it a skadi, he is unstoppable.
PL is powerful coz of images and mana, take them away, and he is your average agi. hero.
wait, you want tips to play with him??
early game : survive, get last hits
mid game : start ganking, this is your time.
late game : own everything.
early on, get phase boots, or power treads. try to get items thta increase stats, so that your images are buffed.
first item, pick between vladmir offering, mekansm, drum of endurance
2nd item is diffusal blade/butterfly/SnY (or any item that increases atk speed, or just buy a hyperstone)
3rd item is survival/catching up with running foes.
dont go by the crap at the dota2 wiki, if you are 2-3 levels abouve opponents, go straight to skadi, and forget about diffusal/SnY
skillz :
Spirit Lance
Juxtapose
Doppelwalk
Spirit Lance
Juxtapose
Spirit Lance
Spirit Lance
Doppelwalk
>whatever
Stats
only level Phantom Edge after you get DPS/attack speed items.
spirit walk and juxtapose are your main skills.
use doppelwalk only for running away.
also, do this trick :
run directly away from enemy. use doppelwalk. as soon as illusion appears, run away in a DIFFERENT DIRECTION, and move the illusion a bit, so that it looks genuine.
use spirit lance for initiation, and to catch opponents. it is NOT your main skill, and you cant spam it unless you get mana items (like eul or something)
your endgame items should be :
skadi/diffual/SnY
butterfly
assault cuirass (yay! tanks!)
khadgar pipe (no more nukes)
phase boots
MoM or any lifesteal item, i prefer MoM.
go for survival items first, then an attack item, then a support item, then a dps item.
you really dont need dps, as your images can do the job, but if you ant farm a butterfly, just get a hyperstone, it'll do the job.
Phantom Lancer Build Guide DOTA 2: Nothing Can Stop Our March: Phantom Lancer
more info
EDIT:
i played tidehunter today

effin' nerf'd

no more anchor smash