Regal Force [Duel Decks: Elves vs. Inventors] Lighting[x2] have this card or 1

have this card or 1 monster it points to gain ATK equal to the ATK of that battled opponent's monster

Set: Tempest Type: Creature — Spirit Rarity: Rare Cost: {3}{U} Flying

or if this card in its owner's possession is destroyed by an opponent's card effect: You can Special Summon 1 "Backup Secretary" from your hand

OR build a Deck entirely of Zefra monsters

Regal Force [Duel Decks: Elves vs. Inventors] Lighting[x2] have this card or 1Set: Duel Decks: Elves vs. Inventors Type: Creature Elemental Rarity: Rare Cost: {4}{G}{G}{G} When Regal Force enters the battlefield, draw a card for each green creature you control. It rarely moves, standing stock still in its clearing. When it does stir, ravens stop their cawing and crickets their chirping. All of nature watches in awed silence.