Ominous has been thinking lately about how to minimize his losses when ever he invaded a new world, he was greedy and every soul in his realm had the potential for greatness, so Ominous has been thinking of a way to invade low level worlds without the use of Force.
He remembered some anime stories in his past life, about how high gods would invade blue star by infecting it with mana and dungeons, and slowly turn blue star into a magical world full of awakened people that would fight for these gods and worship them.
From now own, he would start his plan to softly invade low level words and welcome them into his realm, Only Mid-level worlds would be attacked and swallowed but low level worlds would be included in his realm.