Chimecho

Known as the wind chime with soothing healing powers in the anime and main series, Chimecho unfortunately doesn't provide any utility in Pokemon Go. With inferior stats and movesets, Chimecho is mostly a dex entry, though it is somewhat rare to get. 

Best PvE Offensive Moveset

• Extrasensory performs better than Astonish on offense. 

• Psyshock pairs well with Extrasensory to deal Psychic-type damage. 

• Shadow Ball can pair with Astonish for Ghost-type damage, but this isn't Chimecho's strength.

• Energy Ball isn't useful on Chimecho. 

Best PvE Defensive Moveset

• Extrasensory hits harder than Astonish on defense. 

• Psyshock has the earliest damage window and is most likely to be used before Chimecho faints. 

• Shadow Ball can threaten Ghost types attacking Chimecho, but it is easily dodged. 

• Energy Ball doesn't really cover Chimecho's weaknesses and is inferior in performance, but it can provide some unexpected coverage, so it's worth considering.

Extrasensory benefits from STAB and offers energy generation at a slightly above average rate, making it a decent choice. Astonish is one of the worst fast move options in the game. 

Psyshock gets STAB and requires the least amount of energy to use. Shadow Ball is recommended for its strong damage that's largely unresisted across the meta, and also threatens Chimecho's weakness to Ghost Pokemon. Energy Ball isn't particularly valuable for Chimecho as a Psychic-type, though it can provide some utility against common Water-types in the meta.