Ruckus and Yashira met Rhazala on the 28th Sypheros, 998 YK, when she tried to recruit Ruckus into Daask. She grilled (and roasted) Yashira, and robbed both of them before she left them at Charlie's apartment.
Rhazala is a 6 year old goblin girl who lives in Malleon's Gate in Sharn. Daask frequently use her for scouting, spying, and delivering messages, but she isn't formally a member of the organisation.