Although Vanir still possessed Rosary’s body, his tone of voice changed.

It was probably because Rosary was resisting his control.

Hearing what Rosary said, Brad threw his weapon aside and charged forward.

“Wiz, use sleep or paralyze magic now! I’ll hold down Rosary’s body…!”

Though he said that, he was stopped in his tracks by what Vanir did next.

***
Konosuba: Masked Spinoff, V1, Ch5.