(This answer was given in monotype chatroom, showdown)
It's pretty good in sweeping ,late game cleaning and isn't outclassed by alolan sandslash.(contrary to my thinking). They do different things. People underestimate this thing but it's very good.
here's a set :
Glastrier @ Leftovers
Ability: Chilling Neigh
EVs: 252 HP / 56 Def / 200 Spe
Jolly Nature
- Substitute
- Swords Dance
- Icicle Crash
- High Horsepower
It's works well for a defensive core AND offensive core. Best functions in aroura veil/ trick room.
Hope I Helped!