What nature is the Chingling, and what are its moves?
Chimecho is more good as a special attacker. Good defense and special defense (special defense is 10 stat points higher) Its HP is decent.
Psywave might be an OK attack, damage varies from 50% to 150% of the attacker's level. It does typeless damage however. Despite that it still can't hit dark-types because it's a psychic-type move.
Heal Bell however might really come in handy, because it can cure all the party members' status conditions. You can only use it in battle however.
If it's still alive by level 46, then it'll learn Extrasensory - a strong psychic move with a chance to flinch.
Just make sure not to use it against any gym leaders it's weak against.