Now I could be out of line bringing this up. But somethings I've noticed after playing a game with Ophilia are that your APM are insanely High with creeps and her CK stats at the end of a game are low because her creeps get the kills. Now this could be working as intended but I thought I'd say something in case it wasn't meant to work this way.
I believe you still get the kills when your creeps deliver the killing blow, however, neutral creep kills will not show up in the stats that're shown after the game is finished.
This is why heroes like ophelia and legionnaire often seem to have very low creep kill counts, when they really have quite high.