There are 7 different costume change cards
Now, Jund is sleek, shiny, and new, stuffed to the brim with powerful options
It reminds me of Wizards of the Coasts older Commander precons, which were often more like two or three half-decks in a trenchcoat (the idea being that players would play a few games, get a feel for which mechanics they liked and then start swapping in cards to emphasize that part of the deck)
That means cards cant be given Reckless by The Beast Is Mine!, cant have their strength reduced by cards like Maximus Relentless Pursuer, cant be damaged by Smash, or banished by Dragon Fire
Even though you cant have two planeswalkers with the same name in play, you can have more than one of the same type of planeswalker in play as long as they have different names
You need to pay mana to cast your instants, and High Tide lets you generate even more mana with all of your Islands