The flash took Reuben off guard, not actually expecting anything to happen. Eventually it cleared, instead being in an unfamiliar room. If he wanted to, it felt extremely easy to escape, yet he stayed. After a while, that urgency passed, and he could sense that something had changed, the room almost feeling like another home.
Before he got too used to the room, however, he was sent back into the real world, appearing a bit disoriented. After looking back at the ball and being reminded of what had just happened, he burst into a laughing fit. "Wait, that actually worked?" he said, laughing hysterically at all of the new possibilities. After the boy began to calm down, he looked down and saw his two Pokemon out with him, the two appearing speechless and confused.
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The Roselia on the bed adopted a surprised expression before she too entered the Pokeball with Reuben along with a Maractus that appeared the most disoriented out of all of them. Neither were able to comprehend what was going on, only experiencing a deja vu feeling as if all they had done was move furniture. The two didn't feel like they had the ability to resist from the start, or at least a much less prominent feeling that the part-Serperior had.
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The Pokeballs on the bed made a noticeable sound reminiscent of them blowing a fuse in synchronization with the chime Reuben's Pokeball had made, the two Pokeballs he used to have appearing unusable now and the two residents now sharing a Pokeball with Reuben.