Eren looked at Ivor and the snake who returned his cold gaze with hostile intention. Things were going to get messy again for Eren.
But Eren wanted this. This was his prime chance to closely observe the effects of a genuine beast contract spell. He had told Reen to pay attention to his opponent's every move and any minor details he leaked in front of them.
Reen obliged. Her C-Rank mana sense could be made discreet to lower-ranked entities if she wanted to be. She just needed to be wary of entities who were of the same ranker as her or higher.
Since no one of that rank was in the vicinity, she spread her mana sense across the entire battlefield, sharing its feedback with her owner.
Eren observed that Renita was huffing. She had tried her finest and had performed beyond what she could normally do in keeping Jason out of Eren's way. But it was only a matter of time before she got either neutralized by her opponent or turned unconscious after overdrawing on mana.