User blog comment:Kelvin Saradragon Klein/Kylie, the Chosen Beauty/@comment-77.105.25.112-20121104103011/@comment-220.255.2.29-20121104190533

Xin's ult doesnt refresh for each spell cast. I'd say 10/20/30 armor magic resist is actually fine. If you want to, you can even add around a 5% chance for champions that AA her to get charmed for 0.5 seconds since its a blessing of the beauty god.