If there’s a line of effect between you and the target, no matter how circuitous it is, the target is hit. If there isn’t one, it has total concealment and can’t be targeted. If you’re going to ignore RAW and play like a reasonable person, just let people target the wall.
If there’s a line of effect between you and the target, no matter how circuitous it is, the target is hit. If there isn’t one, it has total concealment and can’t be targeted. If you’re going to ignore RAW and play like a reasonable person, just let people target the wall.