Ideal stats for beginner should be focusing more on Ignore Def Rate > Crit Dmg > HP or Crit Rate. Since Aurora Buff can boost her Crit Rate alrdy u can opt to have HP instead. Relics should be Saving Saint (Light Dmg Set) or u can go like Darkness Set which is OP is fine as well but after the patch today 09/05 I think Saving saint will be on par or maybe slightly better than Darkness Set