A card set in the back row is a trap or Magic Card waiting to be activated.
Since their effects are unknown to the opponent until activation, they serve as a powerful deterrent.
Even if you were holding a card that could wipe out their back row, you'd have to wonder if your opponent had set a counter for that very move.
Each set card made the duel's atmosphere a little more sinister.
Galina, however, clearly hadn't sensed the malicious intent lurking beneath her opponent's doll costume.
"Ha! Your life is but a candle in the wind. I'll finish you this turn! My turn, I draw!" Galina declared, full of vigor.
"Hold on!" Zog interrupted her draw.
"I activate my Trap Card, Drop Off! The card you just drew during your Draw Phase is discarded to the Graveyard!"
Zog flipped over a set card on his field, and an Illusion of a weapon being knocked from someone's hand appeared.
