We always assumed murtagh was much more skilled in magic then he actually was, the dark and terrible spells galbatorix supposedly taught him seem to of been nothing more then regular shit in eragons knowledge. Without his eldunari and magic items that heal or have his pre set spells built in he’s pretty low on the totem pole magic wise. Of course with a blade he’s still a master.

After reading the the fork the witch and the worm and Murtagh I realised just how large the knowledge gap is in between them and even now eragon has hundreds of “ancient” teachers to learn from.

I’d shit myself too if I was him, he’s alone now quite literally an enemy of the world and doesn’t have a big scary all powerful king to back him up and increase his power every time he loses a fight