Minecraft grief hack?

A buddy has a server but has another buddy of mine and me betrayed and completely screwed, houses broken, all things gone etc. Now I would have the question whether someone knows a good grief hack client?

I would be very happy, have a nice day.

Pretty much every hacked client has functions for grief. However, it doesn't do much in survival mode.

Which version?

Do you have Gamemode Creative?

Version 16.5 unfortunately I have no game mode

I wouldn't support that because I'm the server owner and griefing, let's say, is very stupid. It could be that your friend has World Guard or something on it, when trying to grief → it is canceled, so worldguard is an anti-griefing plugin, which can only be dealt with with op.