Pietra, Crafter of Clowns
Legendary Creature — Human Clown Artificer3/2$0.07
Haste Robots you control get +1/+1. , , Tell a joke you haven't told this game to someone outside the game: Create a 1/1 white Clown Robot artifact creature token. If that person laughed, the token gains haste until end of turn.
Not legal in Commander