User blog comment:B214/Question and Answers 6/@comment-208.168.246.222-20180721193912/@comment-208.168.246.222-20180721202304

If it is simply potential on paper than Boosted Gear should have been a high-tier Longinus as well. I can't think of any power more OP than the ability to infinitely double one's own power so I figured there must be another reason as to why a Sacred Gear with that ability is only mid-tier.