As Kenobi says: Anticipate, dont react
Like Set Boosters, your display purchase may be eligible for the Buy-a-Box promoask your local store
Meanwhile Coral Colony (and the slightly inferior Doorkeeper) are much easier to work into various decklists as a nice blocker and mana-sink mill source
I think Fantasy Flight Games should have stuck to their LCG model for this game because one of the things that really killed this game is the fact that you often needed 2-3 cards (with coinciding dice) in order to make a certain card playable, this was especially true about heroes so what you ended up with is a lot of cards and dice that you really couldnt put in a deck and remain reasonably balanced for the general power level of the game
Its also incredibly rare, appearing in less than 1% of English-language Collector Boosters according to the official collecting article for the set
Imperial Bow is the best answer to Evasive characters and can help some of the smaller heroes like Aladdin and Anna trade up into bigger threats, while Thebes offers lore gain for challenging, allowing you to control the board without falling behind on points