Anti-Humor Boy

Incorrigible (If this creature's controller laughs,
they must sacrifice it.)
Ha-Proof (Each time a player laughs, you may
put a +1/-1 counter on a creature they control.)
When you cast Anti-Humor Boy, copy it for each
time a player made a joke during the game.
"I don't get it... how is that funny?"
—Anti-Humor Boy