You can only activate 1 card with this card’s name per turn.
(1) When your opponent activates a Monster Effect, or a Spell/Trap Card and you control a “Doremichord” card in your Pendulum Zone: Shuffle 1 Pendulum Monster from your face-up Extra Deck into the Deck, then, apply these effects.
• Pendulum Monsters you control are unaffected by that opponent’s effect.
• Cards in your Pendulum Zones cannot be destroyed by that opponent’s effect.
• Cards in your Pendulum Zones cannot be banished by that opponent’s card effect.