You can call this deck kaiju, because that is what it was named by the duelist who made it
Most of my resources are from the Magic: the Gathering side of WotC and it seems like those who worked on Pokemon are either still working there(and are hard to pry answers out of) or are impossible to find or contact
Pack Wars is a silly way of opening boosters, but its a lot more fun than simply tearing them open, and the unease of not knowing whats in your deck is sublime
Kiora, the Rising Tide is a great card in any deck that's loading up the graveyard
Price volatility is calculated based on products sold on a per order basis, not a per product sold basis (so an order with 4 of the same card will be counted as a single data point for pricing)
However, some posters on Reddit showed off a seemingly much rarer bonus card for the first drop an alternate art and name Snapcaster Mage