The Voidboat once more came to a halt at the borders of the lightning sea. Yet another clone flew out into the countless streaks of lightning, beginning to slowly transform its divine body.
In truth, Ji Ning could've transformed one clone to the level of being able to withstand the gray lightning, then halted the transformation process and used it as the 'base template' for restoring his other clones. That way, all of the recreated clones would start with enough affinity for lightning to immediately go and try to be transformed by using the black lightning sea serpents. That would allow for more time to be saved. Ning, however, didn't do this; he continued to have every single clone go through the slow transformation process.
That way, with each attempt Ning would continue to accumulate more experience.