Root-like objects hand down from the ceiling. The are constantly moving, but don’t appear to be aggressive. The hanging roots are lightly obscuring and difficult terrain.
Lightly Obscured: Squares of dim light, foliage, fog, smoke, heavy falling snow, or rain are lightly obscured.
Heavily Obscured: Squares of heavy fog, heavy smoke, or heavy foliage are heavily obscured.
Totally Obscured: Squares of darkness are totally obscured.
Concealment (–2 Penalty to Attack Rolls): The target is in a lightly obscured square or in a heavily obscured square but adjacent to you.
Total Concealment (–5 Penalty to Attack Rolls): You can’t see the target. The target is invisible, in a totally obscured square, or in a heavily obscured square and not adjacent to you.
Melee Attacks and Ranged Attacks Only: Attack penalties from concealment apply only to the targets of melee or ranged attacks.