What the hell is the difference...

its one of the glitches from when they "copied" the KMS encryption... in KMS they % is in the name and in our old data the originals are just dark scrolls in the name, they are the same thing just the dark one is older and the 30% in the name one was gacha'd/dropped (do they drop from anything yet?) after the update

But the thing is, I GOT BOTH IN ONE DAY (in fact, I got one, a bottom dex, then the other), meaning you have a better chance of getting a scroll like that than any others.

Also, considering the luk is the point of the scroll, they should be worth about the same anyway, no?