Who would have thought that Forbidden Curses are so troublesome? A normal Ten-Ring Forbidden Spell, if not shortened in casting time, might take a day to chant, and some particularly complex ones might even require two or three days or more to prepare.
And to shorten the casting time from a day or even several days to a mere instant, one can only imagine the difficulty involved.
The vast majority of Great Witches may never reach the level of instant casting in their lifetimes. Those who can reduce the lengthy casting time of a Forbidden Curse to under ten minutes are considered geniuses; to under a minute, they are the favored children of the heavens; to under ten seconds, they are undeniably monstrous talents. If they don't die young, reaching the Peak is not a problem, but as for instant casting, one can only say this child has the qualifications of a Sage.
