We wont be talking about all the legends, because there are a lot of them, and neither of us have time for all that
Since then the trading card game and video game series have grown together, with new cards being added to reflect new material from the video games
So, that's actually quite a lot of good points to Theoden
If your opponents are staring down an army of Slivers, and the Hivelord is in play, it may cause them to overestimate its threat level and waste their removal on it rather than something more important in play
You may be used to this from last year when Mcdonalds also had shown their love of Pokemon cards and sparked a craze of people wanting to get all of the cards that they could
I hope this helps you clarify some questions, and be sure to check the discussion on MTG articles on the Draftsim Discord