Unlike other cards, you may have any number of Basic energy cards in your deck
With all the token creation in white and red, this will rapidly make a small 1/1 or 2/2 army into a threat
Additionally, Cinderella, Melody Weaver, has the Beautiful Voice ability - which gives any of the players other characters with the princess trait a plus one to their lore gathering ability whenever Cinderella, Melody Weaver, sings a song - thereby giving players even more of an incentive to use this character to sing songs for free
On the other hand, Kaladesh and Eldritch Moon booster boxes seem overpriced
Hama-chan's Slowking specifications: Pros You love the goofy little guy Cons You think it's just too silly As for the weirdest card that can't be measured by any usual metric of the TCG, look no further than Hama-Chan's Slowking