Naturally, if you just want to open a new set for fun or want to gamble, thats cool
Thankfully, Umaro isn't full-blown chaos but rather a controlled chaos where the ability triggers and then you get to take actions based off of the result
There is a bonus sheet called Final Fantasy through the ages stacked with 64 additional reprints with beautiful Final Fantasy art from luminaries like Yoshitaka Amano and Tetsuya Nomura
For those unfamiliar, the term aggro is short for aggressive, and in this case, refers to a strategy that seeks to put lots of low-cost cards into play and gain enough of an advantage to win before the opponent can stabilize
Other promo cards will include action card Pull the Lever and the full-box promo card, Minnie Daring Defender
Summon: Kujata is less egregious, since its really just a generic value piece for the most part