Essential Expansions for Board Games

Description provided by Merlin's Manor on YouTube:

In this video, I go over 5 expansions that I have played that I would consider essential to add to the game to make the game objectively better (or at least as close to "objectively" better as we can get... I know this is still my opinion so there is some subjectivity here). I also briefly mention an expansion that I have heard is an essential expansion. What do you think? Are there expansions that you would add to this list? Are there ones on this list you disagree with? Timestamps 00:00 Introduction 01:53 Parks 02:30 Terraforming Mars 02:57 Everdell 04:23 Lords of Waterdeep 05:52 Harry Potter 06:48 Champions of Midgard 07:28 Outro