Ward would like to see the completed Pokédex entry for Gastly so he and his son can go ghost watching at Prelude Beach.

The Request

Talk to Ward in Jubilife Village to accept the request.

Observe Gastly

Gastly can be found at night in Crimson Mirelands and Coronet Highlands. Complete research tasks for its Pokédex entry, and report to Professor Laventon to increase the Research Rank of the entry. Repeat this until the entry reaches Research Rank 10. Then talk to Ward in Jubilife Village.

Reward

You will get 1 Linking Cord.