Rean touched the robot again, but it was then that he remembered something. If he really used Roan's Dark Element, his hair would change colors. It happened the first time Rean used Roan's Dark Element in the robot, but because he only used a tiny, tiny bit of it, only a few strands changed, not enough to catch anyone's attention. If he went all out now, then his hair would truly become a mix of black and white that he couldn't hide without preparation.
Also, there was no way Lotan would believe Rean was using Yin Energy to gather the Dark Element. They definitely would notice the disparate with their Divine Senses.
"Ahem..." Rean stopped just in time. "I don't think it is a good idea."
"Why?" Lotan and Martinius asked at the same time.
"Because the little bit I used earlier barely caused the robot to react, and that was already pretty much my full power. It's hard to control Dark Element with our affinities, and you know that," Rean explained.