it's good but if you're using brave axe then you're usually slow against mages so it's not seen too often w/ bold fighter but instead with wary fighter.
But if you really want to use this combo then put deflect magic on your s seal
I've seen some people do the same thing with W!Chrom. I think it's worth it, he has 48 Atk with Brave Axe+ equipped. Death Blow 3/4 is probably an obvious choice for the A Skill.
Yeah, I agree. In terms of mobility wise, he isn't going to really do anything without armour march/boots or guidance. He really needs those to make him work properly.