Eternal King of Death Prison, the Chain and Anchor

|Eternal King of Death Prison, the Chain and Anchor|???|????|Fiend/Synchro/Effect|Dark|8||2900|1600|(Xyz) 3 Level 8 DARK monsters. You can also Xyz Summon this card by using a "Lifeless King of Death Anchor" you control as the Xyz Material. (Xyz Materials attached to that monster also become Xyz Materials on this card.) During either player's turn, if your Life Points is 1500 or less: You can detach 1 Xyz Material from this card to target 1 face-up monster your opponent control. while this card is face-up, a monster(s) that were targeted by this card's effect cannot activate its effect or attack unless your opponent have no monsters in their Graveyard but it cannot be destroyed, also its loses ATK and DEF equal to the number of monsters in your opponent's Graveyard x 100. This card can attack all monsters targeted by this card's effect.|

make the monster also cannot attack and cannot be destroyed by battle. it's more prison-like imo.

fix'd