I am new to D&D 5e, but everything I have read so far doesn't really clarify this for me.
Context: There is total darkness, essentially making all characters "hidden". None of the characters can see except for 1 PC. He is controlling creatures in the darkness, commanding them to attack. The creatures themselves cannot see in the dark on their own but the PC can see for them.
- He controls them through verbal or psychic commands (new mystic). And
he sees through his own vision, so the creatures only receive their
information through said verbal commands.
Do the attacking creatures get advantage because the PC can see for them, or do they roll as if blinded too?
Best Answer
First, darkness does not make 'all characters "hidden"'. Taking the Hide action makes you hidden and only to those whose passive Wisdom (Perception) is less than your Dexterity (Stealth) check. Being in darkness creates the prerequisite for hiding: being unable to be seen clearly but you are not hidden until you Hide.
For the circumstances you describe, everyone knows where everybody is. Everyone who can't see gives advantage on attacks against them and disadvantage on attacks they make. For the blind attacking the blind this cancels out - it only makes a difference when the sighted attack the blind or vice versa.