User blog comment:B214/Shin DxD 1 discussion/@comment-3965848-20180901152036/@comment-3965848-20180901155158

It could be one that's a novice in training so not that overpowered, plus bare in mind Djinn's are forbidden from doing certain heinous acts, like killing, raising the dead or even controlling free will, hence the reasons why they were imprisoned in objects to begin with from misusing their powers.