User blog comment:B214/Volume 17 spoilers./@comment-202.93.220.182-20140303015647/@comment-24468758-20140329223451

The strength of the ability needs to be cheatlike to become a longinus. Just look at BG and DD: doubling or halfing power every ten seconds without a limit if the host is able to endure it and the other longinus are equal in being cheatlike.