Orb of Winter feels worse now
isn't that good anymore, not that it was great to begin with. I used to get it in ARAM from time to time, but it's a little harder to justify the item as you don't get any HP from it and its health regen was nerfed (and aram penalizes health regen). The shield falls off as the game goes on as well. It also has a bad item build as it requires 4 cheap items that clog up your slots.
I really think riot should give this item a bit of a buff and maybe put it on SR where we need another MR item.