Doubling life gain is potentially important for a deck that wants to gain a lot of life, but gaining a lot of life is generally not that hard
If they can unlock a way to sell booster packs like this without making more than a ripple on the secondary market, that would be a powerful tool in their arsenal, and we could expect many more sets like this in the future
The most expensive piece ever sold (at least on record) is a mint condition Japanese Pokmon card called Pikachu Illustrator originally given away to just 39 art contest winners in 1998 which is valued at $5,275,000
Includes powerful ex Pokemon like Zoroark, Bellibolt, Lillie's Clefairy, and Zacian, enhancing your battle strategies
These cards support setup, disruption, and consistency while remaining part of a randomized booster product