Even without the power source, the system was running wildly out of control; several feedback loops had been hooked into other power systems through the structure, and all of the redundant power systems were feeding into the chain reaction, as well as powering the portal shutdown. All around, the structure is tearing itself apart, in fairly dramatic, explosive ways, as large chunks of her base are collapsing in on themselves, taking anyone hapless enough to be close along with it; only scout constructs, for now, but they're getting closer to the actual teams, the avatars having split off from their fighting, leaving two of Verdelet's dead, to support the structure and keep everyone alive.