Gock Cobbler, Royal Assassin

Gock Cobbler, Royal Assassin can be cast for
{1}{p/w}{p/w}{p/b}{p/b} instead of paying its mana cost.
You may only cast Gock Cobbler, Royal Assassin
after a board wipe resolves.
(The converted mana cost of this card is 3)
Flash, deathtouch, first strike.
"I met Marchesa on a job to eliminate a patriarch
which she beat me to. Needless to say I liked the
way she operated."