You can activate 1 of these effects. You can only use 1 'Exchange of Twilight' effect per turn, and only once that turn.
●Send 1 LIGHT Warrior-Type monster from your hand to the Graveyard, then add 1 DARK Warrior-Type monster with the same Level as the sent monster from your Deck to your hand.
● Send 1 DARK Warrior-Type monster from your hand to the Graveyard, then add 1 LIGHT Warrior-Type monster with the same Level as the sent monster from your Deck to your hand.
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