Ungraded cards are very common, vary massively in their condition, and will only cost hundreds, rather than thousands, of dollars
Even when going first, having a solid Extra Deck monster on the field while setting a mysterious Dark Shadoll monster is just as intimidating
And with Ulalek on the board, they can be doubly potent - if you have the extra two mana of course
Dragonologist Dragonologist does a little bit of everything you want early on: It digs for dragons, instants, or sorceries when it enters, and then once you start dropping your dragons, it gives them hexproof as long as they stay untapped
Black Kyurem #100 (Pokemon Boundaries Crossed | Pokemon Cards) prices are based on the historic sales
The only way to identify a Sealed Deck is by their ISPN number