Rumble: Why using the Blackjack

The Blackjack is the deadliest bludgeon in terms of rumbling. Its pattern mixes up with each punch and for a 3 combo punch it adds 3 black balls to the enemy board + bruises.
Here we can see the BJ's pattern:

Image from YPPedia.

The debility of the Blackjack is its sprinkle, its is fairly horrible, and it is now use sprinkle vs sprinkle.

So why use the Blackjack? If you punch the enemy, you will mix his board and bruise him to death while having no problems on your board. Why? Sprinkles on you are no use because you can build and fire them as Bruises, and in Punch vs Punch the BJ will generate more bruises. It is a huge advantage if ye are trying to go for the Ult.

See my rumbling guide for getting better at rumble.