This is a Stat Stick for Gara. Selecting any high Disposition weapon is key to the build. Best is to shoot for a cheap riven with 400-450%+ damage and then obtain the weapon for the riven rather than the other way around.

Keep in mind that elemental damage from mods transfers to Shattering Lash, but not to Mass Vitrify. Also crit can be applied to Shattering Lash only, and the full damage riven is still better than a crit damage one. Repace two of the 90% damage mods for Organ Shatter and Galdiator Might.

(Note 'melee damage' is multiplicative with elemental damage and slash/impact/puncture damage.)

Melee Exposure Arcane does contribute to Lash, and thus Mass Vitrify damage.