Ghalta gets reprinted somewhat regularly, so its never that expensive of a card, but still worth a few bucks thanks to its popularity
Double exposure cards appear in both Play Boosters and Collector Boosters
The more card search we get in Lorcana, the more interesting deck building will become, making it easier to find specific techs when needed, and making it easier to interact with opposing strategies
The serialized rarities could only be pulled from English collector booster boxes, and collectors have less than a 0.1% chance to pull one from packs
This strategy is meant to prevent your opponents strongest Pokemon from leaving the Bench and make it easier to knock out Pokemon up front
At the moment there arent many potent effects that would warrant automatically running a 1-1 line, but this card will always be there should the metagame ever call for it