Inktober Monstrosities: V for Vodyanoi

The vodyanoi is a creature from Slavic folklore, residing in rivers and lakes. It is usually described as a humanoid figure with a frog-like face, a long beard, greenish black mucky, scaly skin with webbed hands and feet and a fish tail. Largely a malevolent creature it is known to drown people, overturn boats and smash dams and water mills.

In D&D the vodyanoi has usually been described as the aquatic cousin of the umber hulk, sharing most of its stats, save for the umber hulk's gaze attacks. It first appeared in the Fiend Folio for first edition AD&D, then alongside the umber hulk in the Monstrous Manual for the second edition. An alternative take appeared in the 3rd edition source book Frostburn.