Anyways, as far as Dragon Ball power levels go, Omni King has a big question mark.
Sure, he busts universes. He's also not an abstract... Afaics, he's a corporal being. Does he need to eat? Sleep?
Can he resist mind screwing at all? Think of how Kosmos became vulnerable to Thanos's tp because she chose to assume a mortal form. Maybe the head angel is inhibiting/manipulating his thoughts, and that's why he acts like a big child?