Fanoste, a male Twi'lek, held the title of Sith Lord within the One Sith order, operating under the guise of a diplomat. He led a One Sith military force with the specific objective of assassinating the insurgent Darth Wredd on the planet Mala. The battle that followed resulted in Fanoste's demise at the hands of Wredd.
Fanoste, as a high-ranking member of the One Sith Infiltrators, likely possessed considerable intelligence and leadership capabilities. His ability to maintain secrecy and communication with other infiltrators indicates proficiency in espionage. The fact that he confronted Wredd implies a belief in his own lightsaber combat prowess, although this proved insufficient against the renegade Sith.