Ishikawa Goemon, Folk Hero

Ninjutsu {3}{u}{b} ({3}{u}{b}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
Whenever Ishikawa Goemon 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.