I'm popping off!
She's gonna be bearable!
After 2 years of being mediocre she'll finally be adequate!

after devouring the 8 whole seconds of footage, the refine appears to:
-double down on being close to allies
-restore 7 hp after combat
-give a Bunny Fang-esque effect, regardless of HP range
-likely grants +5 to stats + a Vassal's Blade effect?
-seemingly also grants 5 more def?

also she starts the turn with 2 less cooldown than normal
although some of that could come from Veronica who is nearby and whatever her refine is

but boy fuckin howdy, Brave Celica will finally be decent!

why spend 8 minutes watching the rest of the FEH channel when you can spend that time analyzing 8 seconds of Celica footage
what on earth could possibly top a year 2 infantry sword becoming marginally better?