Interesting deck. I would personally change Chlora to Bubbles and Lehane to B Ball.
Imo a way too many 2* with low dmg.
Could you still possibly win with Graff - Randal/Loocio - Spiaghi - Lehane hand?
A bit too topheavy IMO, and the double splash seems unnecessary. I don't know what Lehane's function is in this deck, it doesn't seem like you need her at all.
I find Kluwn and Massiv to be great cards that help Bangers with their low-star damage. Massiv is a sort of overlooked Bangers version of Dreen -- he can take big cards down in a high-pill fight, and is still a useable 6/4 against SoA. Kluwn also gains a 2 power advantage unopposed, which makes him good in a high-pill fight, with pretty good damage for a 5*... And he still does alright against SoA and SoB.