While Lyn found her fight rather bland given that Rendon had no idea that simply being stronger than her meant nothing if said strength didn't "belong" to him as much as her strength is hers, the reward was actually proving to be more challenging to accept.
As in the giant blue energy ring with which she had clashed in the sky, was creating a world-ending like explosion, which devastated the area below of it, and that was just the after effect, while the alabaster dolphin princess was subjected to the explosion at point blank.
It's not like Lyn specifically wanted the make such a ruckus, but like previously stated since her mother's generation the focus for the elite of her family is perfectioning themselves, since they clash their rhythms with the ones of their enemies, so they don't advance until they had polished their mana/battle aura, affinities, innate abilities and the like to their utmost limit.
