These moves are often combined with Lock-On or Mind Reader to ensure it hits. Articuno can learn Mind Reader and Sheer Cold; in Generation II, Poliwrath can have Fissure and Mind Reader if it is taught Fissure in a Generation I game and traded over; and Smeargle can have any combination of the two types of move using Sketch. Lapras can learn the most one-hit KO moves of any Pok?mon (excluding Smeargle), being able to learn Sheer Cold, Fissure, and Horn Drill.