Finally thanks to the 10 free orbs I was able to pull my first Veronica (got the merge from free summon) not only that she is also +Spd -Res.. tho I'd rather prefurred +Atk/Spd -Def but hey I'm not complaining
I mean thats arguably her best IV set (+hp is best for arena though). melee units have usually way higher attack than mages so her survival is still decent and she might be able to take a melee hit if necessary.