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The Teratogens constitute a class of the Golgari elite on Ravnica; the other classes being the Devkarin and the humans.[1] Up until the Decamillennial, the teratogens were the ruling class. Afterwards, however, the Devkarin took over.

Teratogens can essentially come of any background conceivable, though mostly they consist of non-humanoids such as plants, mutants, harpies, nagas, griffins, and centaurs.


  • In the sciences, specifically developmental biology, a "teratogen" is an agent that can cause malformations of an embryo or fetus. This can be a chemical substance, a virus, or ionizing radiation.


  1. Greg Weisman (November 2019). "War of the Spark: Forsaken". Del Rey.