The heart of Yuoel almost came out of her chest when she saw Elena die. She was pretty sure that Elena had some kinds of resurrection skill as she was a world savior but she was still very worried. Seeing a benefactor dying was not a good experience.
She had watched the whole battle from the very beginning. Youel even stopped spending any attention to the other two battles and only kept her eye out for Elena's. She was very surprised to see that Elena was more than evenly match with a Cataclysm class Apocalyptic Monster semi king. She was very happy that Elena was way stronger than she expected and she found that fact to be very strange.
Anyway when she saw both Elena and Gyava changing the phase of the battle, she every time thought, was that not your full strength, and the answer was the same every time too and that was a big no. She became even more bewildered when in the first half of the 4th phase Elena literally defeated Gyava like it was a walk in the park.