>>45797418Bolt Beak, Icicle Crash. These two should already do the trick. Then Low Kick against Mamoswine maybe. Other moves are not necessary since Bolt Beak does more damage than a SE move most of the time. That's why I'd go for Sub to ease prediction.
Adamant or Jolly. Depends on your other team members. Atk and Spd maxed. There you go.
