A Humming Spider is a flat-shaped arachnid with an elongated head sporting two long prehensile probosces. The four rear legs are thick and sturdy, strong enough to bear its whole weight as well as being able to propel it into the air via powerful jumps. The front legs are long, thin, and unrealistically sharp to the point of ignoring any non-magical armor. Humming spiders are nomadic and travel in small groups.

Humming spiders are cowards and will flee if outnumbered or confronted with particularly able enemies, rarely attacking, but when it does in a fast and bloody fashion. A humming spider attacks by jumping over its target and stabbing and slicing several times with each of its forelegs in a swift and frenzied way. The fast piercing legs vibrates with each attack, causing the infamous humming. If at least eight attacks hit on the same round then any armor, if non-magical, is shredded to pieces.

Humming spiders prefer to feed on humans and elves and do so by mashing them into a puree and then drinking the liquids with its proboscis.