[Medium Control] is indeed a very unique A-level skill. Just by looking at the data description, it's hard to comprehend its true purpose.
This should be the reason the Crystal Core was preserved.
This batch of Skill Crystal Cores is a resource collected by the Planter family. There are only 106 A-level Skill Crystal Cores.
It's not that the Planter family has only handled this many A-level Crystal Cores, but rather that this is how many they have left.
After all, Crystal Cores are consumables that are not held onto for long; they are used to recruit and cultivate Superpower Users.
Most of the Planter family's Crystal Core resources are used to sustain the Round Table Knights. Otherwise, the Round Table Knights couldn't be one of the world's top ten Superpower Mercenary Organizations.
And the reason this [Medium Control] was not distributed should be because the Planter family also does not know the true use of this Crystal Core.
