The only time She-Ra calls her brother "Adam" while he's in his He-Man identity.
Adora is not in this episode. She is in She-Ra form for the entire duration.
The mines of Dryl are mentioned again in She-Ra and the Princesses of Power (2018): System Failure (2018).
The sequence of She-Ra holding her sword with both hands and chopping it down in front of is seen again in Anchors Aloft: Part I (1985).
The sequence in which She-Ra transforms her sword into a shield will be seen again in The Unicorn King (1985).