I'm not saying it has to replace the "I am no man", I agree it's epic af, but either it could be downgraded to lv7 or simply have the healer/warrior choice be made at a lower level. I was just thinking that was an interesting idea to have since her becoming lady of ithilien is quite a big part of her life even though it is mentioned very little in the War of the Ring.
What I'm saying is that all her abilities should apart from the disguise and I also believe that Eowyn, being who she is (that is epic), has to be more than just a "hero killer." I think since she already has all those hero killer abilities, something that explores her other facets would be interesting. It could be that Eowyn gets two level 10 abilities: "I am no man" and Lady of ithilien which would have some effect like summoning Faramir or something like.
Anyways stuff to think about, let's think constructive and get that disguise ability out of the way.