Epic cards will be easier to find than Enchanted but more rare than Legendary cards
You can also buy the new Traveling Chocobo cards, which even had their own teaser trailer featuring a limited edition Gold Chocobo
Birds of Paradise has fallen out of favor in Constructed due to the power of other mana dorks such as Delighted Halfling and Ignoble Hierarch, but its a slam dunk in multicolor Commander decks at the very least
The bottom compartment will fit the remaining tokens from the Premium set (+ space for more): 16x Keyword tokens Reckless, Cant Quest, Evasive, Cant Challenge, Cant Ready, Support, Rush, Bodyguard, Ward, Challenger +1, Challenger +2, Challenger +3, Challenger +4, Resist +1, Resist +2, Resist +3
Then you can put a +1/+1 counter on it for every land you have