Why do you attack so slow when sped up by Zilean?
Think about it, Zilean isn't putting the wind at your back to carry you or getting you hyped on pixie dust, he is causing time and space to slow to a crawl around him, so why is your ability to attack unaffected by your time manipulating effects? That would be like if the Flash could only punch at average human speed.
I wanna see two champions buffed by Zilean be able to do this! https://media.giphy.com/media/l3q2MtkB7QVouf3q0/source.gif

"Got'chu covered"
is the ultimate time wizard then?