You can send this card from your hand or field to the GY; place 1 "True Light" from your hand, Deck, or GY, face-up in your Spell & Trap Zone. If you Special Summon "Blue-Eyes White Dragon" while this card is in your GY (except during the Damage Step): You can Special Summon this card. When a card or effect is activated that targets this card on the field, or when this card is targeted for an attack (Quick Effect): You can Special Summon 1 "Blue-Eyes White Dragon" or 1 Level 1 LIGHT Tuner from your GY. You can only use each effect of "Maiden of White" once per turn.