|Add the POW, carry the SPD, then drop the CMD? So confused.|
Eyeless Sight (p. 34) - "This model ignores cloud effects and forests when determining line of sight. This model ignores concealment and Stealth when making attacks."
Spray Attacks (p. 60) - "A model under the spray template cannot be hit by the attack if the attacker's line of sight to it is completely blocked by terrain."
Forests (p. 88) - "When drawing line of sight to or from a point within a forest, the line of sight can pass through up to 3" of forest without being blocked, but anything more blocks it. When a model outside of a forest attempts to draw line of sight to another point outside of a forest, the forest blocks line of sight to anything beyond it. Thus, a model can see 3" into or out of a forest but not completely through one regardless of how thick it is."
Sprays work on the attacker's line of sight (LoS). Because forests block LoS past 3", sprays also stop working after 3" of forest (see: Bile Thralls). This all makes sense. When you add in Eyeless Sight, which ignores forests (and clouds) while determining LoS, then it gets a little wonky. Sprays stop working when terrain (forests) block the attacker's LoS, so models with Eyeless Sight get the full range on their sprays even when spraying into woods because Eyeless Sight stops the woods from blocking their LoS. (Clouds don't stop sprays from working, they just stop a model from being targeted [which Eyeless Sight also ignores.])
Digging around for a bit in the rules forums produced a couple threads on this topic, but there's an issue here as well. While there are Infernals popping up in them, they don't specifically address the interaction of the rules under discussion here. Other posters do though and while the Infernals don't correct them on that interaction but do correct them on other items in the threads, I'm assuming (dangerous) that the lack of correction is because the train of thought presented is correct. It's very possible that there is a thread with an Infernal explicitly confirming that Eyeless Sight sprays go their full distance through woods and that I just haven't found that particular thread yet. That said, I've found a number of threads that all follow the same logic, which is enough circumstantial evidence to convince me. My evidence is as such:
- This thread, notably posts 3, 4, and 14.
- This other thread, which is short enough that it all applies but no Infernals.
- This other other thread, notably posts 17 and 18 but again without Infernals.
- This final thread (for now), posts 9, 11, 20. It meanders a bit into whether or not it makes sense for the rules to interact as they do. The final post, 34, has an Infernal effectively quoting the rules for Eyeless Sight and sprays and saying they ignore forests (and clouds) without explicitly saying it in so many words.