I need help from good Cassiopeia players

well look with this new passive they opened up quite a gap in her build so I cant recommend any specific items but since the passive now handles a lot of ap you can build some health items or even magic resist or better yet since the passive gives you some health you can build her full ap for for incredibly high magic/burst damage over time hope I helped u aand see you on the fields of justice

With 200 stacks, masteries, and WotA (or mikeals if support), she'll have 40% CDR so I'm thinking riot expects her to build that item. You'll also want at least Seraph's Embrace because of how her E works. So that's 2 items. I'm not sure if she wants athene's or not, she doesn't need the CDR at least. Rabadons seems like a must. Boots too.

So her usual build is going to be something like with an optional 6th item.

Probably start with a as usual and then build from there.

First of all. is unecessary for her right now, DON'T BUILD IT.

I suggest:

Start with , first back buy .

IF you are having laning problems go for or , depending on the enemy laner.

Don't finish the Negatron Cloak until you have all your other items, but if you're against an ad enemy (or feel like the active would save you), rush .

whenever you feel you need it.

Your next three items should be , always check your tear stacks, buy Seraph's as soon as it's ready.

I don't like Rod Of Ages but some people would recommend, but I'll say that the mana from it is not necessary at all after you get tear, as long as you're using your E passive correctly.

Your last item is situational: (she already has innate healing, but this has always been an amazing item for her, also gives even more healing) (might seen really stupid at first, but she can land autoattacks in between her E casts which ups her burst, this would be the ultimate glass cannon Cassiopeia) (haven't built Liandry since her update, this is good for harass, but there are better items if you plan on going all in) / (can be built out of the Negatron Cloak if you don't want to sell it or feel you really need the mres, spirit visage would theoretically be really good combined with her passive, but I haven't tested it) (them tanks)

Also remember that getting cooldown reduction doesnt effect her cooldown for her twinfangs when the target champion is poisoned. The closer you stand to an enemy the lower the cooldown will be for the twin fangs on a poisoned champion.