There are a lot of characters from Snow White featured in Rise Of The Floodborn, including all seven dwarfs
Milling your opponent is actually positive for them unless you can finish them off, and there simply isnt enough lifegain to enable Hope as a potential win condition
They also create intrigue in the way they're built - after having done some research, I think there's obvious upgrades for both that aren't too hard to find
While exiling your own creature is generally frowned upon, youll be gaining yourself 10,000 life, which is a huge amount in any game
The card itself makes four 1/1 Hero tokens and then powers up every creature on your board, to reflect the story of summoning your adventuring party and imbuing them with the power of the crystals
Remember, I am not saying these cards are bad or will not see play in other archetypes, they are just not slam dunk includes for over 1/5 of the metagame, in full playsets, for every player running a certain deck