GGG explain this!!! I got killed by the final boss of Sekhema Trial

I was killed by this mechanism. The boss just used a ball on the ground to hold you in place and spin it to discharge damage.
the peace moment didn't prevent damage from this.

by the picture looks like you bought the buff at the end of a floor ( can see chests in the background).

second last room in your screen shows honour restore altar icon and not merchant, the buff only last for 1 room not 1 floor.

what room you got the buff?

I got the buff at the room before boss. I am sure I have the buff in the final boss room.
The first pic was taken because I want to switch to English version to see if the translation were wrong.

The buff helped me block the boss's normal attack (throwing small balls), but he can still cause damage on me through lightning like in the third picture