Ruralfriend's Urban Rivals Blog

The Bangers aren't a great clan for beginners, and a good, cheap full deck of them is all but impossible. However, of the six I've presented, there are still some good cards that can be had inexpensively to make a decent half-deck.
The first purchase should be without a doubt Bennie, as he is cheap and a terrific wall (i.e. he has high power, so if you pill him well, he can take out the majority of cards). Especially in the beginner rooms, where SOA (stop opponent ability) and SOB (stop opponent bonus) are few and far between, he is a firecracker.
Next, Naykee or Platoona are decent buys, but you have to make a choice: if you're willing to save up a bit longer, you can get cards that will be much more useful to you in the long-term. If you want results now, though, I would go with Platoona, as she has solid stats, despite her lack of an ability. f you're patient, the next buy should be Kluwn. He's a good card that can go toe-to-toe with most cards his level or even higher.
Rounding out the top four are B-Ball and Saddy, both excellent cards that prove their worth later on (daily tournaments (DTs) and ELO). B-Ball is usually a staple (a card often found in a clan's best half-deck) for the Bangers, and Saddy's SOB is great to combat the common +/- attack clans.

To summarize, Bangers are not a great clan for absolute beginners, especially since no card is very cheap outside of Bennie - persevere, though, and you will be rewarded (7.5/10).
However, if you are patient enough to fill out a half-deck with B-Ball, Bennie and Saddy, it does have decent retention value later on (7/10).