Graceful & Skull Dice - Beyond the Brave (BETB)

Roll a six-sided die twice, and apply these effects for the rest of this turn.
• All monsters you control that mention "Dark Time Wizard" gain ATK/DEF equal to the total x 200.
• All monsters your opponent controls lose ATK/DEF equal to the total x 200.
If your opponent Normal or Special Summons a monster(s), while this card is in your GY (except during the Damage Step): You can banish this card, then target 1 of those monsters; roll a six-sided die twice, and if the total was 6 or higher, destroy that monster.