The fact that Palkia and Dialga occupy consecutive spots in the Galarian Gallery numbering (GG67 and GG68) has also made them popular paired purchases for collectors who want the matched set of Sinnoh's creation duo
Honestly, this is true for all difficult decks to play, and for all players (I am on week 2 of trying to learn to play Leviathan optimally even though it quickly became one of my favorite decks and taught me worlds about water control as a whole for other archtypes)
however, both are designed to be compatible with each other and can be merged to be played as a single functional Deck

X is fun...I had a lovely deck with it that I might revive with Ninetales (HGSS), that I had considered when first I heard about the Ninetales I think I will have to go with Ray-CX for being, and I'm a Ray fan, but after trying to build a solid deck with it, considering it is to be a main attacker, it's just too difficult to be able to consistently either have no hand, or to constantly load energy every turn Char-GX would be my next choice, 5 energy consistently, and not that grand hp, binder bait for sure the rest, I don't really have all that much of a problem with...Dialga is too fun, it's just meant as a fun tech anyway...Rhyperior is a beast when used correctly, but is difficult to pull off some X's were meant as techs, some were meant as attackers, outside of the 2 that I mentioned...the rest aren't that bad at their jobs, imo Soul Urusai Urusai Urusai #15 dragonexpert said: If you get power sprayed you get to do whatever else in your turn, unless I am mistaken

The 24 ft telescoping pole lifts the rugged outdoor directional antenna above trees, hills, and other obstructions, making it easy to lock onto the nearest cell towers for maximum performance
Lastly, Black-White is a reanimator deck