This anomaly mutation colors the dracovix's teeth and/or sclera to a dark gray, dark dull brown, deep yellow, or off-black color. You can choose either the teeth or the sclera to be darkened, or both. You can stain just some of the teeth rather than all of the teeth.

The designer may use multiply or color filters, or color the teeth flat colors manually. Light shading and subtle color gradients are allowed.

When Heterochromia and Stained mutations are both present, you can stain the teeth and sclera in separate colors, and you can leave one eye sclera unstained.