Originally posted by -K-M-
Where did it say he could tap into them when Jimmy had them? As I remember he mentioned multiple times he had to reabsorb the powers from Jimmy physically, and that's why they tried to keep them apart
I think juntai has it right although it is like deciphering some cryptic message. Its tough figuring this out but I do believe he stored them into jimmy and could control the power with a thought but it was altered when atom destroyed his device. Then I guess he had to destroy jimmy to fully take the powers for himself permanently.
I think he was coming after jimmy because he wanted to absorb the powers at the time and didnt want to leave this vast energy in him any longer. He was just going to kill him powerless but when Atom destroyed the device that made it a fight. This made jimmy able to retain control of his powers although it didnt make any difference as Darkseid whipped his ass nonetheless.
This is indeed tricky to follow as the writers didnt communicate enough for it to add it up and make perfect sense.