Scale is awesome
Enough energy to sterilise a galaxy (or at least mandate the evolution of extremophiles) and still growing when observed.
Is this the kind of thing the Pierson's Puppeteers were running from, or was it a super super nova? Now imagining the burning galactic centre being eaten by a supermassive black hole. Makes our planet seem fragile and puny.
I assume this is large enough to at least have a go at bending space and time.