There are many players in Baldur's Gate 3 who don't know the solution to the problem of how to use the camp tool buff in "Baldur's Gate 3" when improving their combat effectiveness. The editor encountered the same problem as everyone else when he first came into contact with this game. I have experienced this problem, so the editor has very rich experience. Below, I will compile these experiences into strategies to show you.
The team leaves an empty space, pulls the tool man into the team, adds all the BUFF, and then kicks the tool man away. In this way, the BUFF is retained, but the spell slots of the four people in the team are complete, achieving the purpose of free BUF.
The operation is simple and requires only a few hands, but it is a little troublesome because teammates who are not operating in the camp will automatically return to their workstations.
In addition, it is not recommended to hire mercenaries to operate. You only need to wash the teammates you don't need to become mages and priests. Because mercenaries need to be upgraded every time you recruit them again after repatriation, which is far inferior to using the profession of teammates you don't bring. Once the washing is done.
In fact, the answers to the guide on how to use the camp tool man buff in "Baldur's Gate 3" are more than those mentioned above, but this is the simplest and most convenient method that the editor has found. I hope it can help you solve the problem easily.