Based on his knowledge, there are many weaklings that live in this place, people that aren't worth his attention.
Cassius planned to use Scorpion, Velvet, and Silent One to capture the weak people in the mansion. Then, he used them as hostages while he attacked Mara.
After subduing her, he thinks he can threaten her with the hostages to make Mara work for him.
If it works, it will greatly improve his army strength. But unfortunately, it didn't work that way.
Just by coming to the perimeter, after he split from the others, he already met with another strong creature.
As Cassius was thinking about his next step, a big rhino suddenly appeared from his side and ran forward at high speed.
The rhino surprised Cassius; he didn't even feel its presence. Cassius pulled out his stinger, then quickly moved his hand, meeting the horn head-on.
Unfortunately for him, the strength behind the rhino's tackle is no joke. It even overpowered him.