Upon building, it spawns small hatchling spiders that are unselectable and wander around the lair. They provide minimal protection. Easily killed but free, no command points, and respawnable.
At first level you can build Large spiders, at second level Giant spiders. Max building level of three.
The spiders themselves (at least the Large and Giant ones) have four levels and will change color from normal to 2nd level RED, to 3rd level BLUE, to finally 4th level they turn white.
Very effective early in the game to take out neutral structures and to scout about because of thier speed. Against an army you need to do alot of attack and run away manuevers. You only get one attack while a hordes gets at least five.
All Spiders regain health if left alone for a short while. They cannot pickup treasure so be sure to have some goblins around to back them up.
The structure costs 600, the Large spiders 500, and the Giant 1000. They do build rather quick though. This will increase thier use in times of defense if you have the cash.
I hope you all enjoy it, it was 2 weeks in the making. (here and there of course)
Any feedback it welcome.
Screenies for the unconvinced.