Not only can he burst you down in seconds he can also disarm you and the passive can give him a general idea of where you are when you use fade way.
shes hard to burst down even if you sneak up on her and she has both a disarming ability and an ability that blocks auto attacks.
The only way to beat her would be to effectively duke her abilities especially the ultimate stun.
Depends on how good the ares is if he can land most or all of his chains he can be a pain to deal with as he will prevent you from using your escape.
lots of slows and his stun can ruin your chances of using fade away.