Cruallassar certainly was having his vision impaired by the maze of tunnels...solid objects were one thing, but alternating objects and empty space did make it difficult. Though, Shashous himself stood out like a beacon among them, so he would likely be unable to effectively hide...it is only his surroundings that will be difficult to decipher, and that would be a tactical problem.

Which is why he made his move now. Shashous was making his way through the first net...all well and good, but the net still impeded his way until he could. And the second further impeded it, a few feet beyond that...the second backing up the first as yet another barrier for the next few seconds. For that time, the creature was backed up against a wall. There is no escape for him.

Ethereal shadows swished into the tunnel behind the creature, twisting themselves into the form of the Ranger. Three arrows were nocked and ready, an assortment of one explosive arrow, one HV arrow, and one hailstorm arrow. All three were let fly at once, forming a tight  triad. The distance was carefully timed, the hailstorm arrow would burst into it's hundred projectiles just a few feet beyond the elf, then the HV arrow would accelerate, the shockwave detonating the explosive arrow in the passage just before reaching the creature, and the HV arrow proving the first line of offense as it accelerated only an instant before reaching the creature himself, and an instant in front of the hundred energy shots that would pepper the whole length of the tunnel for the next length. This was Cruallassar's vengeance.