Lets see what those skills do again next chapter. Now that HX has grown even more powerful in the mean time. The context will definitely be more impactful.
For the specific blank summoning card, is it limited to members of the Kunde race, or literally anyone? If it's the latter, that's a very juicy reward!
Trillions of Kunde among the 113 planets would mean nearly 19 billion amony the lowest amount of 2 trillion and then add 9 billion more people per trillion so depending on the size of the planet thats a hefty sum. (unless earth is a relatively small planet)