If you have external armor strip or corrosive, drop [Toxic Barrage] + [Shell Shock] for [Primed Point Blank] + [Shotgun Elementalist]

For [Saryn], drop [Shell Shock] for [Shotgun Elementalist] and [Toxic Barrage] for [Contagious Spread]

Primed Cleanse is flexible for Shotgun Elementalist if you hate banes.

EVOLUTIONS

EVOLUTION II : Blazing Barrel - gives multishot

EVOLUTION III : Rapid Reinforcement gives +60% reload speed to the insanely long base reload speed of the non-incarnon form of 4.6s. Stacks with +30% from Primary Merciless so the final reload speed is 2.4s. Reload speed also affects the transformation speed into incarnon mode.

EVOLUTION IV : Elemental Balance gives +11.3% status chance to EACH pellet on the base form. Since [Strun Prime] has 12 innate multishot, you end up with a total base status chance of 46 + 12*11.3=182% upon transforming since the incarnon form only has 1 base multishot. This means with just two 60% status mods, we can hit 182 x (1+0.6+0.6)=400.4 % status chance, i.e. guaranteed FOUR status effects per shot, before multishot. With 3 multishot we basically get TWELVE guaranteed statuses per trigger pull. At approximately 40% slash bias, we can get approximately 4 to 6 slash procs every fire.