About the Ghost Type

How did games use Ghosts as an elemental type? Should I have a Ghost Type in my own game? I look at some some games of the past and recent past to make my decision. Thank you to ‪@FCPlaythroughs‬ and ‪@worldoflongplays‬ for the gameplay footage Learn more through the links below: Brinicle:    • Brinicle, Underwater Icicle "Finger of Death"   SciShow Episode on Brinicles:    • Brinicles: Icicles o' Death   Music themes: https://pastebin.com/PqVuP8R9 Twitch ►   / n0rtist   Twitter ►   / n0rtist   Instagram ►   / n0rtist   Patreon ►   / n0rtist   #pokemon #fakemon #gamedev #stem