Same frame as Hraesvelgr would be, yes. Assuming you'll be relying on your Hraes instead of a friend's, then the comparison is 3* Herc axe debuff would be stronger and should be able to apply it before 10 turns.
That said, also take into account what Bear just said.
And of course, whether Arthur even is your long term choice hinges on what the rest of your team ends up looking like.