In general as Camille short trades are your forte. Q1 a minion, bounce off of a nearby wall, AA-Q and immediately back off, throwing your W behind you to disuade him from chasing at all. Your best opportunity to beat Morde is pre-6 and his level 6 powerspike is much, MUCH stronger than yours. Try to space around his Q, since you can't afford to play the poke war with him. If he goes for one and misses you can go for a trade. Do not, however, trade if he has a large shield available.
Progressing into mid-game, you might find that even with a lead he will destroy you in a 1v1. QSS is your friend but itemising it early will leave you very weak and you probably cannot afford to buy it until after Trinity Force.
It's a good Grasp of the Undying lane imo. Grasp as a keystone has increasing popularity on Camille because it allows her to get through laning phase more easily. Her early game isn't bad and she scales well but almost every popular top laner is a bad match-up for her, and all of the champions she does well into are less popular right now.
