Hello, I'm an expert in the field of Pokémon, and I'm here to help you with your question about Smeargle and the move Sketch.

In the Pokémon games, Smeargle is unique in that it can learn almost any move through the use of Sketch, which is a one-time use move that allows Smeargle to permanently learn a move from another Pokémon. However, once a move is learned via Sketch, Smeargle cannot learn it again using the same method. This means that if Smeargle has already used Sketch to learn a move, it cannot use Sketch to relearn that same move.

However, there are other ways to relearn moves that have been forgotten or replaced. Pokémon Centers can help Pokémon relearn moves they have forgotten, and in some games, there are specific NPCs or items that can help a Pokémon relearn moves as well.

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While Smeargle can only know 1 Sketch at a time, after you have Sketched one move onto Smeargle, it can learn Sketch again. If you do not feel like leveling Smeargle up, you can have Smeargle relearn Sketch via the Move Relearner. RSE: The Move Relearner is found in Fallarbor Town and costs 1 Heart Scale per use.read more >>