Synopsis: Taking her turn in the season seven family reunion, Troi finds out she has a sister. A dead sister, but whatever.
Memory Alpha Summary: Of course, being seven season, she has to first hallucinate her dead sister.
Review: Lwaxana’s final episode on TNG is her second best, six seasons after the best. The five seasons in between of her character being only annoying was a crime. The writers finally decided to give her some depth and a reason for her being an insufferable mother. She’d get a couple damn good episodes on DS9 at least.
Death By Troggles 
I still think Lwaxana is great in that episode with Alexander and the mud baths or whatever. She’s the real highlight of that one.
You know, that was indeed an episode where she didn’t play the insufferable mother role. The whole “being so depressed I’m getting married to a jerk” think I didn’t like much, but Barrett did put in a strong performance.
“She’d get a couple damn good episodes on DS9 at least.”
Odo thanks you.