Deus was confident that even if he used his <{Osteoporosis}> authority to weaken his opponents, even those at the Mid Realm Peak Stage wouldn't know that he had used his authority. They wouldn't even know that their bones had weakened which made Deus confident in instantly killing his opponents using his <{Spine}> authority.
So if it was a death battle against the senior members, Deus was confident that he could kill all of them in just a few seconds. But if it wasn't a death battle, he was still confident that he could defeat them but not as fast as when he would kill them.
Deus had already used his system to identify the power levels of all of the senior members in the meeting room and he found out that they were indeed at Mid Realm Intermediate Stage.
