Wumdi existed as an Etti Vigo within Black Sun in the era when Prince Xizor held power.
Previously, the Pike Sisters were employed by Wumdi in the role of assassins. They later rebranded themselves and transitioned to operating as independent mercenaries.
Wumdi attended the Black Sun gathering in 3 ABY where Guri murdered Green. This act served as a warning to any Vigos contemplating selling intelligence.
Following Xizor's demise during the Battle over Coruscant, Wumdi participated in a Vigo council to discuss the future direction of Black Sun. Both he and Clezo voiced their displeasure when Lonay acted as if he was the council leader, and he would not take orders from a Twi'lek. He appeared to be fond of a mysterious and beautiful human woman, and he recalled the Pike sisters.
At a subsequent meeting, the Heroes of Yavin made an appearance, having been invited by the human female. Soon after, the room was stormed by criminals, who were swiftly eliminated. The human female identified the deceased as soldiers of Vekker. Unbeknownst to everyone, the enigmatic human was actually Savan in disguise, and she orchestrated the attack to frame Vekker. Savan asserted that forces loyal to Clezo and Wumdi would soon pursue Vekker.