Akali, the Rogue Assassin

Ninjutsu {2}{u}{b} ({2}{u}{b}, Return an unblocked
attacker you control to your hand: Put this card onto
the battlefield from your hand tapped and attacking.)
When Akali, the Rogue Assassin deals combat
damage to a player, choose a random card from
that players hand. That player discards that card.
"Fear the assassin with no master."
— Akali, the Rogue Assassin