Dinah Drake is the metahuman Black Canary, complete with Canary Cry.
We’ll have to wait and see if Dinah causes trouble for Oliver and Team Arrow in the rest of Season 5.
After all, Evelyn was a teenage girl with a bow and arrows.
It sounds like she has the best intentions with her decision to make the move to Star City; we can’t know just yet if those intentions will shift the longer she stays.