Purple Light

Does anyone know of any reference that would prove that this spell gives off a purple light? I can't find any reference to it in canon. ProfessorTofty 03:17, November 5, 2011 (UTC)

I assume it comes from the TCG image (those purple rings around the quill). -- 1337star (talk) 03:24, November 5, 2011 (UTC)
Ah, I see. I guess that makes sense, though generally when I think of the "light" associated with a spell, what comes to mind is the flash of light associated with the castig of the spell. ProfessorTofty 03:28, November 5, 2011 (UTC)