Orianna's passive should be different

I like Orianna, and I think she is in a decent spot right now, but her passive is not that great. Sure, it helps in trading and securing those minions, but other than that, she does not use it often. In team fights, you are not very likely to be auto attacking until after all of the spells are on cool down, and even then, it is not very reliable. I think she should be given a different passive, one that works with her spells. Maybe using a spell or two will increase the missile speed of the ball for a short amount of time, or grant a little bit of cool down reduction. Maybe she gains a little bit of range with each level. I'm not too sure, but I feel like there could definitely be a better passive for the lady of clockwork.