User blog comment:CapnJedders/AP champion cs frustrations/@comment-5791947-20131030011601

I suggest here a way to practice last hits. Go bottom lane, pick Fiddlesticks, Anivia, or any other champions which have awful attack animations. Put a Sivir Bot while you're at it. Do not harass Sivir's health by more than 50%, do not use more than 50% of your mana.

That will improve your last-hitting. I had no issues last-hitting with Syndra, Leblanc, Cassiopeia and hardly any with Fiddlesticks.