Lara Croft is an evasive, speedy, and crit-based Water ranged damage dealer. With 3 different yet similar jobs, she does end up fulfilling the role of a ranged damage dealer quite nicely. Being able to get up to +3 range, having the Reflex counter ability, and the benefits of the main job abilities which gives her some high evasion plus missile/defense piercing rate and a phys barrier break.
She has very high evasion through her passive and Double Bullet, and very high crit rate through her stats + her signature weapon Laras Dual Pistols. With some proper gear and vc setup, she can reach alarmingly high levels of them. Main downside to all this is that she only has 1 area attack, and it's Barrage from ranger sub job.
You can build a full mono water missile units since Viktora (Winter) and Creysse exists, and she kind of works well with Tidus since he's also speed and crit based water unit.