Me and my friend have started a Pathfinder campaign (Second Darkness) where I am DMing and he is playing all 4 PCs. We are using roll20 (it's a great online tool to facilitate games). The reasons for this setup are numerous and not worth getting into, but suffice to say this is what we decided would work best for us. This campaign is already underway so the PCs cannot be changed at this time.
How does having one player control all the PCs affect the balance of encounters compared to a normal multi-person campaign? Do I need to increase the challenges to keep things interesting? I'm guessing yes, but since I am new to DMing I could use the perspective of experience.
Some things that make me think normal encounters might be a cakewalk:
- The party's abilities are perfectly synergized since he made all 4 of them together.
- The PCs work together in combat very well because he controls all of them.
I'm thinking of giving all monsters max HP to help balance those. Or will that not be enough?