How does this work?

I see this page now and then via the Random Page link...how does it work? do I just use one and get a scroll or is it like the unknown scrolls with a fixed rate?

Like a gach.

...that may explain a lot...*sees a shop full of the same enchant 10 times...*

Yep, it's like an event prize box full of only enchants that can be obtained once per real day per character.

Well I knwo what I'm doing...Strider boots all day after getting craps.