So I may have found the problem with Ahri
Her W may be bugged right now. Just died to her to basically 1 W. Death recap showed me taking 900 damage from fox fire alone yet she didnt even have 400 AP. Um I would look into this. She had a Zhonya's, Luden's, Morello, and sorcer's shoes end game. There is no way in hell she did 900 damage with just the W when she was level 13.
I think it was something with her Zhonya's, it didn't seem like the fox fires were being used while she was in it but I was still taking damage as if they were constantly shooting me anyways.
MAGIC DAMAGE: 40 / 65 / 90 / 115 / 140 (+ 40% AP) Multiple flames can hit the same target, with each flame beyond the first dealing 30% damage. 「 ADDITIONAL MAGIC DAMAGE: 12 / 19.5 / 27 / 34.5 / 42 (+ 12% AP) 」
Not sure how she could even do that with any amount of AP.