Saffira, Queen of Dragons (DUEA-EN050) [Duelist Alliance]

You can Ritual Summon this card with "Hymn of Light". During the End Phase, if this card was Ritual Summoned this turn, or if a LIGHT monster was sent from the hand or Deck to the Graveyard this turn while this card was face-up on the field: You can activate 1 of these effects;
? Draw 2 cards, then discard 1 card.
? Discard 1 random card from your opponent's hand.
? Add 1 LIGHT monster from your Graveyard to your hand.
You can only use 1 "Saffira, Queen of Dragons" effect per turn, and only once that turn.