Talk:Seven Deadly Sins Series/@comment-99.27.131.245-20120902062243/@comment-3467648-20120903022942

Apparently that's the case. The Glass of Conchita and the Mirror of Lucifenia didn't show the capability to fully possess a person until the Climax of their respective Sin, ocurred.

Probably they need to feed of the Sin (and soul) of their owners to increase their power.