Ziggy Maxwell can know what Varang is doing without seeing her. Zentella, within the sword, has an ability called Spectral Surveillance, which allows her to monitor anyone in her manipulation network with an invisible spectral projection of herself (the Hydroid) that can see and hear everything around the person she is watching.
Varang is under Zentella's surveillance, meaning Ziggy can anticipate her movements. However, Spectral Surveillance has a drawback: Zentella cannot know the exact location of the person unless someone else, or Varang herself, mentions the place. Otherwise, Zentella will only vaguely describe the location based on what she sees.
Thanks to the tsaheylu between Varang and Quaritch, Ziggy could now monitor Quaritch through Zentella and her spectral surveillance. In 2159, when Ziggy and Varang mated and connected their kurus, Ziggy's mind, being connected to Zentella since he grasped the sword in 2150, "infected" or transferred that connection to Varang. And since Varang is still connected to Zentella, Varang "infects" Quaritch with it, giving Ziggy Maxwell an advantage against Quaritch by allowing him to anticipate his movements.
What Ziggy sees as infidelity and romantic deception ends up becoming a double-edged sword against the one he calls a "wife stealer". If Ziggy intervenes in the conflict between the Na'vi led by Jake Sully and the RDA-Mangkwan alliance, the Zentella sword will be a very useful tool for him and his Tsrake clan.
