A certain princess of the night and her evil counterpart have permanent weights. The card's info says: CVBT-EN007: Eternal Weight (Continuous Trap) OBs monsters cannot be destroyed by battle. If an OBs monster(s) you control would be targeted by an effect: You can discard 2 cards; negate the activation, and if you do, destroy it. Destroy this card during your 3rd Standby Phase. (Common)
