Dragon Ravine (SDDL-EN021) - Structure Deck: Dragunity Legion Unlimited

Once per turn, during your Main Phase, you can discard 1 card to activate 1 of these effects: // *Add 1 Level 4 or lower "Dragunity" monster from your Deck to your hand. // *Send 1 Dragon-Type monster from your Deck to the Graveyard.