"It's just a violent lizard. You are weaker than that!?"
The shout was all that Su heard. Rise had stopped being nice and controlled the moment that the two had teleported to the Sigil continent again. Instead, she had become feral if that was even the right word.
The kindness and controlled Rise was letting way to the true nature of a dragon. This wasn't because Rise was cruel, but because she was focused on discovering the light dominator dragon ruins. She also knew that Su needed to be challenged properly if anything else.
Therefore, Rise did not hold herself back and pushed Su to fight monsters well over her limits. For a perfect example, Su was fighting the earth affinity violent lizard with very high defensive powers.