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Is there no hope for Hail/Snow this generation as well?
Abomasnow was given aurora, but it's just too weak. It gets oneshot by anything that isn't Garchomp.
And some of the wallbreaker mons are so strong that it doesn't even matter if you have both Snow and Aurora on a high defense mon, yesterday I got my Cetitan under Aurora Veil 2 shot by Population Bomb.
Another thing I tried was Slowking Trick Room into Chilly Reception and a Choice Spec'd Terastalized Glaceon using double stab Blizzard, and that would work ok if Slowking were bulky enough to reliably get 2 moves off, but it's pretty rare for that to happen, and Glaceon/Frosmoth aren't strong enough to nuke anything like a Belly Drum Cetitan is.
Haven't tried using Baxcalibur but I don't see it having any synergy with Snow.