The other night we had Slab the Killer in play as well as Jourdonnais. Here are their abilities as listed on the cards...
Jourdonnais
Whenever he is the target of a BANG!, he may "draw!" : on a Heart, he is missed.
Slab the Killer
Player needs 2 Missed! cards to cancel his BANG! card.
When Slab the Killer plays a BANG! against Jourdonnais, how is Jourdonnais's ability applied? Obviously if his ability is unsuccessful, 2 Missed! cards would have to be played, but what happens if Jourdonnais successfully draws a Heart? Is the entire attack cancelled out? Or will an additional Missed! card still need to be played?