While the weather is Hail, Sleetle's evasion rises by 1.25x, and it cannot be hurt by the hail.
Sleetle will not flinch.
Sleetle act like guard dogs. They will stand up to anything that is in their way or will harm their trainer. Most of them refuse to evolve, but they will if you have a Blazle or Flamalon in your party and use a FrostShard on them. They like to eat most kinds of foods, but their favorite is strawberries. Their name is a combo of Sleet and Little.