Mattias Ekholm

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 Mattias Ekholm deals combat damage
to a player, look at that player's hand. You may
cast a nonland card in it without paying that
card's mana cost.
Silent-Blade Oni