Only a dagger--Inessa shoots him a worried look, not wanting to endanger Prompto in the process. But there's no real time for anyone to head back and arm/armor up. Whatever happens, happens now.

"We need distractions! The workers must finish the red lyrium removal, or this will never end!" And Garahel can't protect her all by himself, much as he's trying. She yells at her mabari to get back before casting Veilstrike, twisting and pulling at the essence of the Fade, causing them to slam back down. But they'll recover, and they outnumber the trio.