Silent-Blade Oni (Planechase 2012)

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 this creature 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.

NM - $9.50
LP - $7.50
MP - $6.00
HP - $4.00
DMG - $2.00