Technology long lost, I believe - something about taking DNA from the oldest known Pokemon in existence and using it to create something new.

But their creation took poorly to its new life, and to being controlled. Using the same methods that had birthed it, it created an army to destroy humanity.

[ He doesn't sound very dismayed about it. Actually, he doesn't sound very emotional at all about it. ]

Apparently, it did quite well at that. But I do have to wonder where it is now, since surely it survived.