“An ethereal army runs on its energy siphons. Interrupt the flow of energy by destroying their siphon tower, and the army will pull back. It's one of their weaknesses as minions. Normally I wouldn't share the secrets of their defeat, but they betrayed me and will forever live with the consequences.
The siphon has a control console that can be overloaded to collapse the system. It will be shielded by a void barrier. Alleria can remove it for you.”
