ghost/flash is a must

need more ability power, rush rabadons, get banshees, then abyssal, don't need rod of ages and frozen heart

catalyst -> sorc shoes/merc threads -> deathcap -> banshee's -> abyssal/zhonyas -> rylais

mana/5/lvl seals

i think u lack more ability, u dont need 180 armor, with Ryal's scepter u r not that squeshy any more.
try with items like Archangel, and Rabadon must have in build for Cassi
i'm very surprised that u dont have that item in build
i use to play cassi when not playin shen, and with aroun 500 ability power u r real threat to any1, even tanks can be harassed by your Noxius and Fangs. Noxius and Misima are great escape abilities, coz with Misima u slow champion and with Noxius u get speed boost so u r able to escape...

Coherent build for me.

Ex you dont seem to get the fact that Cass is full of CC and burst dmg.

Her Ult can change team fights, Misma is a great way to deal dmg and slow anyone thats running, and with her ability to spam her fangs she is sure to get kills.

There is not right way to play a champion. There are recommened ways to play, but no right way.

tanky cass is like soraka DPS :D I think it's not the right way to play her. Yes, let's say you will survive more and etc, but you won't be such powerful as you could be, and why to survive if you can't kill :)

As far as spam builds go, this isnt that bad. And you found a way to make her bulky and as a result grant survival and increase her dmg. Very very nice.

Ive played her a few times, and I was overwhelmed by the complexity of her. But she is a lot of fun to play and if you build her right a mean champion. Very well done. +1