Arya Stark, No One

Deathtouch
{3}{b/g}, {t}: Put a Mark counter on target creature.
{2}{b}{b}, {ut}: Arya Stark, No One deals 2 damage to target creature with a mark counter on it.
{4}{b}{b}: Until the beginning of your next upkeep, Arya Stark gains all abilities of target creature in an opponents graveyard