The Spider is a creature that unleashes webs that hinder towers and heroes. It was introduced in PC version 7.13 as a new enemy, found in Mistymire Forest and on Nightmare Difficulty on the original maps.
They sling down from the trees on their weblines, often behind your defensive lines. The Spiders will then proceed to web up your Defenses, causing them to be much less effective, and then they'll come after you. When you're webbed, you're slowed, can't use abilities, and are vulnerable to a subsequent Spider jump attack. So they're nasty little creatures, not necessarily for the direct damage they do, but in terms of how much they can upend a traditionally-laid out defensive plan. The key to Spiders is to setup specific Defenses and Traps oriented to take them out, and to deal with any stragglers personally.
--Jeremy Stieglitz[1]
Like Wyverns, Spiders do not come out from the main spawn points so separate defenses may be necessary. Spiders have their own unique spawn points, some of which may be near the standard spawn points, although generally not. On Mistymire Forest there are at least 14 different spawn locations for spiders, only five of which are anywhere close to the spawn gates for other ground monsters, and four of them are almost directly on top of the crystals.[2]
Web Attack
The Spider's web drastically reduces the fire rate of entangled towers, reduces the movement and attack speed of entangled heroes, and prevents entangled heroes from activating any of their abilities. It will also increase the damage monsters do to the affected hero or tower
Lunge Attack
The Spider's lunge attack allows it to rapidly engage players in melee from a short distance. This can be deadly.
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 Spiders
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Bosses
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