Enchanted cards in Shimmering Skies have new text box and border designs which allow for more of the full art to be seen, as compared to the Enchanted cards in sets 1-4 For the first time, Legendary cards in this set have a raised texture on certain parts of the art like the character and some effects
While the three decks are carefully balanced against each other, they each focus on differing play styles - corresponding to their different combinations of two ink types from the six card colours in Lorcana - so some may be easier to handle or more satisfying if you prefer to play a certain way
That's amazing in going wide brews or stuff with loads of permanents like Voltron or Planeswalkers
Aside from there being some solid options for Bird cards in Bant, like Derevi, Empyrial Tactician, there are also cards like Murmuring Mystic and Flurry of Wings that can create Bird tokens for you
Every time you swing with Birds with Choco out, you get to dig into your deck, draw a card, and drop (potentially) multiple lands into play at once