Fractals: Rata Novus
That would be awesome! I wonder if they had meow golems, too.
I would love this, and would make sense since every fractal should be a time when high lvls of magic are gathered.
Survival mode achieve perhaps, survive for 5 minutes against the final onslaught or something.
Or repair asura gates to help the survivors escape (might be somewhat cliché with thaumonova)