Like most Pokmon cards, the value of Luxray ex depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Twilight Masquerade)
Knight of the White Orchid can do lots of work early game, especially if you can trade up into your opponents with it and return it to the battlefield later with Sidar Jabari
Sidenote: I have to wonder if there was a concrete date there in the first draft of this article
Not suprised everyone thinks Regis are piles of shit
Reshiram- EX would act as either a main attacker, or a back up attacker, depending on the situation, or depending on the deck its facing
The upside of the mechanic is that you have the ability to build a creature stack to your liking, whether thats making a small one with a cool ability larger or giving a larger one neat abilities