@whityf0x Thanks for the Constuctive Critisicm ill be sure to change the runes and add the spell Combination u Reccomended and thanks for commenting. @therd Thanks for the Criticism I'll add some Alternatives for Survivability switching out Phantom Dancer

for me this build is kinda stupid. phantom dancer on assassin ? he must use his abilities to destroy enemies, not his auto attack .. ur survi hurts so much .. u won't even enter a fight, and u'd be destroyed in 1-2 seco0nds :) u won't even click R second time ^^

Well i honestly dont like your rune choices its to many different ones you should focus on boosting things he can do very well or compensate things hes lacking.

For example your reds :
not so usefull in my opinion, because u get 6,69 increased Critical Dmg. Lets say u got a brutalizer boots and your flat ad Runes on lvl 6
thats 97 AD ur crits hit for double dmg ( although your crit chance is really low before u get youmuus or a zeal) would be 194 and with your runes it would be 13 +Dmg. on your crit = 207 i dont think thats an early advantage.

Furthermore i wouldn't call your Guide In Depth because you barely describe how you can use his spells or which combos to use and i really dont like your idea of initating with in my opinions its best to use
E + Autoattack + Q (Resetting Attackcounter) + W and then pop ur ult for max dmg you can even Q him one more time because of its low cd.

You can think about the stuff i mentioned and pm me if u got some more questions.