Alolan Sandslash is a Pokémon introduced in Generation 7.
Sandslash can be potentially useful on Snow teams, and has decent Defense and Attack, though it's rather slow and very specially frail. Its typing is absolutely terrible; Steel and Ice leave it vulnerable to being 1-hit KOed by most Fighting and Fire moves. Nevertheless, it can try and work on Snow teams using Slush Rush.
Sandslash's Ice and Steel typing gives it a immunity to Poison, Toxic, the Poison type and cannot be frozen.