Once per turn: You can discard 1 card, then target 1 Level 4 or lower "Lightsworn" monster in your Graveyard; Special Summon that target. During each of your End Phases: Send the top 3 cards of your Deck to the Graveyard.
Lumina is one of the best ways to move a Wulf, Lightsworn Beast stuck in your hand. Discard Wulf and then immediately revive it with Lumina’s effect. You must already have Lightsworn monsters in your graveyard to use this combo.