Forspoken Use Cuff Insight Get Weakness of Enemies Tanta Sila Errant Soldiers. Forspoken walkthrough is here. The hero faces off against the Tanta Silar Errant Soldiers outside Xenos Tower slightly after investigate the Cognoscents' Guild quest. The Tanta Sila Errant soldiers appear to be resistant to damage, and the hero needs to use cuff insight to find the weakness of the Tanta Sila Errant Soldiers and how to defeat the Tanta Sila Errant soldiers.