Well, she’s an assassin character. I don’t think she’s a brawler or skirmisher that is able to engage and keep damage/pressure on a target. She’s supposed to pick off targets by picking optimal positioning and chasing down low-health characters and bursting them down. I’ve played with a great Deande that has no issue bursting people down quickly and efficiently. A skilled Deande is utterly frightening.
If you can get away from a skilled Deande after she engages, then you’re either;
a) Lucky
or
b) Very resourceful.
but that’s just my opinion based only off of the very few skilled Deande players I have had the pleasure of playing with.