| Croat-guy |
So, to sum:
RE: Swarms.
Web is only superficially similar to spider-web, and it's size is meant to entrap medium creatures and not fine creatures. Therefore, swarms are legitimately immune to the web effect. While I understand and sympathize, what of the spell Entangle? Should swarms be vulnerable to vines and grass? Personally, I'm more inclined to side with Azhrei's reasoning, yet allowing that logic may open the door to more broken situations mentioned by Warforged Gardener. A difficult call, indeed. I believe the final DM call was to say that in the specific case of swarm + web, the grappled condition applies.
RE: Line of effect.
Vision impairment does not effect the accuracy of area-of-affect spells. Blind players may select a square and reliably be able to cast that spell in that square. I'm not sure I'm comfortable with that mechanic. I agree that it is the proper way the rules should be understood, but it doesn't sit well with me. There just seems to be something wrong with a blind wizard being able to accurately cast fireball.
Though, I suppose at that point you must simply keep a close eye on metagaming. Although the blind wizard may be able to cast fireball accurately, the character should not have any knowledge of where enemies may be - despite the player knowing full well. A difficult balancing act when only one party member is blind.
The discussion was prompted by an ambush with a spell caster Drow hiding in the trees. Round one, Summon Swarm (hence the Web dispute); round two, obscuring mist; round three, Fire Storm hitting one group inside the mist, another outside. Though, I believe the group inside the mist didn't move during round 2, so it's conceivable that the Drow simply cast where s/he last saw the group. Confusion was had all-around, and the DM believed he was in the wrong and apologized. Apparently, the apology was unnecessary.
That is the consensus?