Injection Fairy Lily [LOD-100] Secret Rare The Valuable Book Volume 5 You can only use this

You can only use this effect of “Ride of the Valkyries” once per turn

you can activate this card's effect by revealing 1 Fusion Monster from your Extra Deck and sending 1 of the Fusion Material Monster listed on that card from your Main Deck to the Graveyard

select and destroy 1 face-up monster on the field with an original ATK that is less than the ATK of this card

return this face-up card to its owner's hand

Injection Fairy Lily [LOD-100] Secret Rare The Valuable Book Volume 5 You can only use thisSet: Legacy of Darkness Card type: Effect Monster Rarity: Secret Rare Attack: 400 Defense: 1500 This card's effect can be activated only during the Damage Step of either player's turn. Pay 2000 Life Points to increase the ATK of this monster by 3000 points only during the Damage Step.