mpbt12 dreadnaught

"That's a wise assumption." Kyuubey praised, "Yes, they do – and Lorelei knew this. Whenever a Puella Magi succumbs to grief, the darkness within her coalesces and she manifests into a Witch. When it comes to Dreadnaught Witches, though, there is one little addition to this scenario. It's what I like to call the Taint of the Dreadnaught."

"… Taint?"

"Only the strongest Puella Magi are able to defeat the Dreadnaught Witches. Once a Puella Magi is able to defeat a Dreadnaught, she effectively becomes the strongest Puella Magi in the world. She has defeated her nemesis – thus, there is nothing left for her but to take its place."

"I-In other words… Lorelei will be…"

"Lorelei Sankt will become the next Dreadnaught Witch." Kyuubey acknowledged, "That much is true."

"How could you do such a thing…?"

"I have a quota to fulfill, to put it simply." Kyuubey promptly replied, "If Puella Magi simply eliminated the Witches, then Dreadnaught Witches would have already ceased to exist and Puella Magi would have no purpose. But no. The war between Puella Magi and Witches is a cycle – one that will not end. Dreadnaught Witches fall, but the Puella Magi that defeat them will be there to replace them.

With each passing manifestation, the Dreadnaught Witches grow stronger and stronger. Thus more and more girls must take up arms in order to defeat them. It is a delicate balance, really, but my quota will be reached before long."

(Magia, Pacem, Bellum Terarrum, Chapter 12)