This build is designed to capitalize on the keratinos special attribute. Heavy attacking at max combo will extend range by 2-3 meters. You want to run this with a primary and secondary weapon both with the dexterity weapon arcanes to increase combo duration, or alternatively, with the naramon focus school. Dexterity arcane is good on a primer like the [Kuva Nukor] which synergizes nicely with [Condition Overload].

We ignore crit altogether with this build and it still destroys. It's super simple and easy to use. Run into crowds of enemies and spam quick attack. When combo reaches x12, heavy attack. Watch the claws grow larger. Enjoy your 7 meter range.