While the others were in his pocket dimension, Rain moved around on the planets that were moving to extract some of their energy. They didn't respond to his call since they didn't want to be destroyed, so Rain didn't feel bad for taking a bit of their energy and speeding up their ends. First them before him, after all. Besides, there isn't a single living being that can outlast the life of any planet.
Rain did that because the spirits of the planets that agreed to help him didn't have that much energy left, and he also wanted to use the time aspect as much as possible to buy time for his friends.
During that time, Rain also thought of some ways that he could use the information aspect, but testing them was rather difficult. He could do what Rais could do and a bit more, but the complexity of that path was just too high…
