I like the character in terms of his personality and story. I find him interesting.
But what's with the Blade of Frontiers stuff? I was expecting something ... different. He's built as a warlock. It's more like Eldritch Blast of the Frontiers, right? I don't know. Something about it just doesn't jibe, in my opinion.
I mean, I get that he basically made a pact so that he could be a hero, but when push comes to shove, don't people expect him to actually use a blade? Why would everyone keep calling him Blade of the Frontiers when he's not at all exceptional with a blade?