Some Pokémon lose the ability to learn certain moves when they evolve. For example:
- Pichu learns Nasty Plot at level 18, but Pikachu can't learn or re-learn it
- Pichu can be taught Uproar by the Move Tutor, but Pikachu can't
In fourth or fifth generation of Pokémon games (Diamond/Pearl onward), are there any Pokémon who can learn a HM, but lose the ability to learn that HM when they evolve?