During either turn , except the End Phase ( Quick Effect ): You can discard this card; apply this effect this turn. You can only use this effect of "Ghost Sister & Spooky Dogwood" once per turn .
● Each time your opponent Special Summons an Effect Monster (s) during the Main Phase or Battle Phase , you gain LP equal to that monster's ATK . If you did not gain LP by this effect, your LP are halved during the End Phase.
● Each time your opponent Special Summons an Effect Monster (s) during the Main Phase or Battle Phase , you gain LP equal to that monster's ATK . If you did not gain LP by this effect, your LP are halved during the End Phase.