this system is more like acting tough rather than bluffing.

If you read novel you'll know it.
But well, there will be a time where he will actually bluff. A lot.

"you bluffed!"

"But you also killed someone"

HOW IS IT BLUFFING THEN

"I killed someone!"

And?

i'm sorry...HOW IS THAT BLUFFING?

It's not a bluff if he really can do the stuff he spouts...

this why before PVP, you should try MVP first

is he expected him to survive that crazy attacks???..

well i don't blame it... but he should scaled up his power little by little until it reached his opponent limit...

well this is for plot point anyway... so yeah...