|Source books||Monster Manual II|
The golem-like bronze serpents were first seen in tropical lands, serving as guardians to temples of the gods they resemble. They appear as twenty-foot long serpents made of articulated bronze rings and with impressive fangs armed with electricity instead of venom.
The bronze serpent appeared in the third edition in Monster Manual II (2002).
- Monster Manual II v 3.0, page 40-41