You can activate 1 of these effects based on the Attributes in your GY;
• LIGHT: Send 1 "Blue-Eyes White Dragon" or 1 card that mentions it from your Deck to the GY, except "Chronicle Sorceress".
• DARK: Send 1 "Dark Magician" or 1 card that mentions it from your Deck to the GY, except "Chronicle Sorceress".
You can only use this effect of "Chronicle Sorceress" once per turn.