Caitlyn

Cait has high range and can out maneuver Lucian well. Her poke will hurt him a lot if you're not careful since Lucian has short range. She also outscales him so getting behind in this matchup is really rough. Try to dash into her with e, auto, q, auto and back out. If she's really scared and e's backward right away make sure to juke it so she can't land the headshot passive from landing her e.