Dice Re-Roll [DR1-EN262] Common BT9-075 You can only use this

You can only use this effect of "Knightmare Mermaid" once per turn

if this card is in your Graveyard because it was sent there this turn: You can target 1 "Red Dragon Archfiend" in your Graveyard

If the target is changed to Defense Position

Set: Legendary Collection Kaiba Card type: Tuner/Effect Monster Rarity: Ultra Rare Attack: 0 Defense: 1800 When a monster on the field activates its effect

The original ATK of that monster is halved until the end of this turn

Dice Re-Roll [DR1-EN262] Common BT9-075 You can only use thisSet: Dark Revelation Volume 1 Card type: Normal Trap Rarity: Common Attack: 0 Defense: 0 Once this turn, negate 1 six sided die roll and re roll it.