YOUTUBE - The Forsaken | Star Trek Fans First Time Watching DS9

They couldn't just have Odo and Lwaxana. They need to have most of the other characters do something so there always is a need for a secondary plot.

“The turbo lift tube is electrified so if you try and shapeshift it’ll kill you.” Four hours later… “Well, it’s been a good run. Death doesn’t sound so bad.”

This episode added more to Troi’s character than all of TNG!