Reduce an opponent's ability to react by using W into Q range then Q and use R while they are still in mid air, followed by using E and AA'ing them as soon as they land.
All in with W to get into Flash AA range then R and instantly Flash, into AA E followed by using Q before they land.
To use abilities more for damage land Q then instantly W to gain attack speed, follow it up with AA E AA and finish off the kill with your ult.
To stop someone Flashing away R then instantly Q, prep your E then AA as soon as they are in range.
To catch opponents Flash then instantly Q, follow up with AA E once they are in range.
To engage when close range use W to get into range to E knockup then Q them mid air.
To chain your crowd control Q and instantly activate E, then AA once they arrive.