Camille Guide

Tips for Playing Against Camille

-Watch out for her outer cone (W) early on, as it not only does percent max health damage, but also heals her (and slows you).
-Her 2nd Q does true damage, so try to avoid trading for too long unless you for sure win it.
-If you can eat Camille right when she casts hookshot, you can usually kill her. Hookshot gives her attack speed also if she hits it, so she can't engage or disengage very well.
-Her ult cancels your W, and dodges Qs, so be careful. Not only that but she does percent current HP damage in her ult.
-You can time your W near the end of her ult to escape if she doesn't have hookshot up to interrupt you.
-When she gets Trinity Force, be careful! Someone else might have to match her.

Heartsteel

She does do some %HP damage, but being able to play from range is nice, and usually if you can survive until Giant's Belt you can kill her pretty easy. Plus with how squishy she is, you can sometimes pop her with this.
Unending Despair

I'm unsure about rushing this but I imagine it could be a good option 2nd or 3rd item since her ult will keep you trapped.
...

Idk, Iceborn? Dead Man's? Really though I think you should be more focused on building vs other champions. She does both true and %HP damage.