Curse of Hospitality has a lot going for it in regards to political plays and generating advantage
You get 30 uncommon cards, 10 rare cards, and 60 common cards with 10 booster packs
Somehow I dont think riding around on a giant toad fits that description, but thats what we got with Tatsunari, Toad Rider
It also helps a multitude of graveyard-based combo decks, such as Vintage Dredge, answer problematic hate pieces like Leyline of the Void in an easy manner
(So you'll want to read up on what the different Magic: The Gathering mana colours mean.) That means that if you have a commander who is red, you can only use red cards, whereas a commander with three colours gets access to all three of those colours
Not only does this change which cards and effects might be valuable to either side, but it allows for more specialized deckbuilding on the hero side as players might try to take up different roles to combat the multidimensional threat of the archenemy