Magic and D&D have always gone hand in handeven when were talking about Zendikar Rising , the Party mechanic is really based from playing RPGs like D&D and getting inspired by that
Much like Ghalta, Stampede Tyrant, Gishath allows you to put any number of Dinosaur creature cards onto the battlefield, but, improving on the formers ability, you can dig through the top X cards of your library to get them (based on the amount of combat damage it dealt)
Jolrael animates a very impressive beater all by herself, but to maximize the card draw we're getting off her we're animating additional lands with cards like Tatyova, Steward of Tides, Embodiment of Insight, and Sylvan Awakening
A rare, exclusive, foil-only variant like this could easily be worth double that, if not more
He holds the position of Board of Director at several publicly listed companies