Select and activate 1 of these effects. You can only select these effects of "Doremichord Harmonia" once per turn each.
● Add 1 "Doremichord" Pendulum Monster from your face-up Extra Deck to your hand.
● Have 1 "Doremichord" card in your Pendulum Zone gain Pendulum Scales equal to its Level until the end of this turn.
● If you control 3 or more "Doremichord" Pendulum Monster Cards with different names that have odd-number Pendulum Scales, or that have even-number Pendulum Scales, you can destroy 1 card your opponent controls.