You gave her invisibilty skill + beyond unbalanced ultimate ?
You just cant 1v1 her, she will almost always catch you off your guard because of that ultimate, no matter how you build. And if she finds herself in bad situation? NP, I'll just vanish away.
Ultimate base CD at rank 5: 80 seconds, with 40% CDR = 48 sec. Every 48sec she can change to any god on the battlefield. How is that not overpowered? Who the hell in Hi-Rez thought it would be a good idea to implant such an ultimate to any god?