Ecco

Ecco bears the marks of exile permanently. However, she has gradually learned how to make them appear to fade. The entire spell is written all over her body vertically, written in the ancient peragros language. The final mark that bears her name and number of exiles is on her forehead. That mark is harder to make fade, but by third exile she had mostly controlled it. Since it is easier for her to concentrate on keeping only most of the marks invisible, whatever clothing she is wearing will also be covering visible marks. Another workaround is darkening the skin itself to match the natural black of the marks (usually arms and legs fading to complete black hands and feet).

Here Ecco is in transition, summoning shadows to envelope her.