Mask of Weakness [DTP1-EN017] Common 5D's Starter Deck 2009 you can Summon this card

you can Summon this card in face-up Attack Position without Tributing monsters

Set: Dark Beginning 1 Card type: Normal Monster Rarity: Ultra Rare Attack: 100 Defense: 2600 Negate the activation of a Spell Card that designates this 1 face-down monster

Set: Champion Pack 7 Card type: Effect Monster Rarity: Ultra Rare Attack: 1800 Defense: 1000 When this card inflicts Battle Damage to your opponent

If this card destroys an opponent's monster by battle and sends it to the Graveyard: Inflict damage to your opponent equal to its ATK in the Graveyard

Special Summon 1 "Mystic Swordsman LV4" from your hand or Deck

Mask of Weakness [DTP1-EN017] Common 5D's Starter Deck 2009 you can Summon this cardSet: Duel Terminal Preview Card type: Normal Trap Rarity: Common Target 1 attacking monster; that target loses 700 ATK until the End Phase.