Silent-Blade Oni [Planechase 2012] SM108 Set: Premium Gold Card type:

Set: Premium Gold Card type: Normal Trap Rarity: Gold Secret Rare If your opponent has 8 or more cards in their Graveyard: The ATK of all monsters your opponent currently controls become 0

(When Summoned

Set: Battle Pack 3: Monster League Card type: Normal Trap Rarity: Shatterfoil Rare Attack: 0 Defense: 0 When your opponent declares an attack while you control a monster: Target 1 face-up monster your opponent controls

Mind Bomb deals damage to each player equal to 3 minus the number of cards they discarded this way

Silent-Blade Oni [Planechase 2012] SM108 Set: Premium Gold Card type:Set: Planechase 2012 Type: Creature Demon Ninja Rarity: Rare Cost: {3}{U}{U}{B}{B} Ninjutsu {4}{U}{B} ({4}{U}{B}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) Whenever Silent Blade Oni deals combat damage to a player, look at that player's hand. You may cast a spell from among those cards without paying its mana cost.