If you wanted to make Zhonya's Hourglass a niche item, why did you lower the armor?
You did the right thing with Abyssal Septer, lower the ability power and raise the magc resistance. Sure, you lower the gold of Zhonya's Hourglass. but it certainly was a big nerf. Why not make Zhonya's give 60-80 armor and raise the cost a little instead?

they lowered the AP and cost of
now.