Since the Holy Grail could no longer give birth to powerful angels, Mikhail can only make do with the fact that only weak angels can be birthed. Despite this, he is glad that there were numerous angels that is created when he activated the Holy Grail. He hopes that at least one in every thousand show promise.
He also commanded all the angels to look for a special being that has half the soul of an angel and a devil. He must make sure that he possesses this being as it will greatly help them should they possess the Nephilim. A being that is the reincarnation of the son of his half-brother, Samael.
Not a lot of angels know this, but the First Seraphim Mikhail is not the first born as his brother Samael was. Unlike him, Samael is different as he was formed using some Asmodian Blood. His brother was the very first Asmodian Angel hybrid to ever exist and he was twice as powerful as Mikhail.