I am slightly confused on combat in darkness. There are modifiers for blinded combatants and invisible combatants, but not specifically combatants who cannot see due to darkness. Are they all considered blinded? Are they blinded AND their opponents are invisible? What are the attack (melee or ranged) and AC modifiers for each combatant in the scenarios below, assuming the combat area is completely dark (due to no light source in a cave, magical darkness, etc.)?
- Neither adversary can see in the dark.
- Only one of the adversaries can see in the dark.