Here me out for one moment. Ben used to be in possession of the Ultimatraix. He only used 10 ultimate aliens. I proposed that Ultimate Brainstorm would have a quantum computer added to his own incense intelligence. A fun idea would be to give him some sort of bubble that is a mile in diameter. All of time would pause in these bubbles but Brainstorm would be able to become an astral projection and fly around the bubble. He would know the position of every atom in the bubble thus giving him a limited omniscience. He would simultaneously run simulation if every possible event that could happen inside this bubble without outside influence. He would be able to use his electrical blasts to trigger muscles to fire inside others, and search through their minds. He would be smarter than a base galvan. Instead of pausing time in the bubble you could also say that he steals the kinetic energy from everything inside this bubble and converts it into electrical energy.