[x] CHAAAAAARGE
-[x] Boost in, sword first, try to hack something important off.
[x] Sonar. Make it as loud as possible. As a secondary priority, try to direct it mostly forwards.
Calculated risk. Could go horribly wrong, but we'll heal faster than her if it does. Besides, one of the few things that'd hurt more than blasting ourself with infrasound is getting carved into bite-sized chunks because we didn't; she's forewarned, and probably didn't last this long by being slow on the draw. We need something to put her off-balance.
Also,
EDIT: Motherfucker. Too slow.