Vishkanya

From a distance, vishkanyas share more than a passing resemblance to humans. However, a closer inspection reveals ophidian eyes with gold or white coloring, a forked tongue, and tiny, smooth scales set in serpentine patterns atop their skin.

Vishkanya Infiltrator (Creature 3)

Although the idea that vishkanyas are able to administer their venom at a mere touch is a myth, some powerful vishkanyas can concentrate their innate toxins, resulting in more potent venom or venoms that have different effects.