I still don't get why Cassiopeia was nerfed for building an item that used to be core for mages
Another way that Riot made mage itemization worse was by taking away Abyssal Scepter(which is 10x better than banshees veil and easier to build to) and gave mages this lackluster item where you can only sit on 25 MR until you complete the entire item. This change affected Cassiopeia more than any other mage due to her inability to build Merc Treads.....
Instead of nerfing a champion for building an item that used to be one of her core items, why doesn't riot just fix the mage itemization that they themselves screwed up in the first place.