User blog comment:YourPrivateNightmare/Thoughts on the new Cassiopeia/@comment-5588011-20140914001236/@comment-5588011-20140914131628

It pretty much is necesary considering that you don't have the defense or the health to sustain, her passive heal currently is pitiful with only 10% AP, I don't find that Rylai's is that necessary now considering that Cassiopeia has lots more CC now and in this current dash meta you can't peel hard enough with your slows, it almost always becomes a DPS battle, and your Q does pitiful damage to poke, and the WotA helps a ton sustaining in lane, where she's squishiest.