It is common for publishers to use rigid boxes rather than simple tucks to package their tucks, since they also need to include guides
I expect almost every Selesnya deck to be playing two to four copies of Trostani Discordant for the foreseeable future
The novelty alone earns Set 4 a higher spot than some of its peers
Ajani, Nacatl Pariah / Ajani, Nacatl Avenger comes down as two bodies for 2 mana, which isnt the worst rate, and if you can trade off the Cat token you get a nice little planeswalker
Its also noteworthy that Carnivora is then split into Cat-like and Dog-like categories, with Bears and Mustelids being Dog-Like, but I dont think people would be very comfortable with Bears having creature type Hound
It gives your nontoken creatures the ability to tap for no mana to copy a token dork that was made this turn