I had an idea I wonder if the energy thing can be salvaged. Like uranium to lead happens naturally and the energy is too little from a single atom. But we don't have to do things naturally. If I'm controlling the atom itself, maybe I can just split all protons and neutrons from the uranium at once, then I have a bunch of free particles that can go collide with other atoms and start a chain reaction.

I think most powers, even with limitations, probably is going to be useful once we know the clear limits. Maybe not the one that need so much energy and the results are random so you can fail and not be able to try again.