Once per turn during your opponent's Standby Phase, you can remove from play any number of DARK monsters from your Graveyard. This monster gains 500 DEF for each monster you removed, until the End Phase.
i dont know i mean you want monsters in your graveyard to use for skul liar right? so i dont know what use there is for getting rid of monsters from your graveyard. if this could be used on your turn it would be better
If this is obtainable, it will be sick for Escape decks