UPDATE:
24/09/2021 - Changed Riven stats to fire rate instead of more multishot, did some testing and realized that having no extra fire rate feels kinda bad in general gameplay. Updated the section of replacement mod for the riven. Primed Ammo Stock got released today, replaced Primed Tactical Pump for it, the extra 20 bullets feels way better than the extra 2.8sec reload that starts after you stop firing, allows for more room clear.

• Update 30.9 (2021-11-11)
  (Undocumented) Changed the description of [Galvanized Savvy] to better [Reflect] its current function (which clarifies that area of effect damage is not included)
  ... BUT WAIT! We want to explain why because it’s very important to us that everyone understands where we are coming from with our current design mindset. AoE Weapons are the dominant ones by every usage metric. We see this day after day. Having this bonus apply to the AoE instance felt dangerously close to a myopic choice concerning powering up player Arsenals that simply do not need it. This mod never worked on AoE, and the description now explains that to avoid confusion. We understand those seeking a different outcome will disagree with this choice, but ultimately we are not willing to further bolster AoE at this time. This is due to the increasing difficulty in creating content that serves to challenge the Tenno.

^ This basically means that other than Galvanized Savvy giving us 80% status chance it is practically useless and a waste of slot. At this point with the way I made my polarities I guess you could just drop it and run the regular Shotgun Savvy and then max our Shell Shock to rank 3.... I don't know this is really sad. The best option would probably be to add Primed Tactical Pump but then you'd need to change the Vazarin polarity to Naramon, which would kill the other configurations that I have for this weapon. Thanks DE.

3rd configuration build sharing the same forma polarities as the other 4 builds for this weapon.

Secondary fire build, corrosive damage projectiles with viral+electricity status procs.

Here's a video demonstration of the build without a riven againts lvl160 corrupted heavy gunners(not doing it againts exo grineers cuz I don't have Primed Cleanse Grineer and I don't have them scanned yet, the invigoration on my warframe was a +200% ability strength aka don't pay attention to it):

The more the enemy is grouped the better cuz electric procs bounce between the enemies. Melts steel path mobs.

The riven mod is kinda the best mod for the slot honestly, providing extra electric elemental damage, raw damage and extra fire rate to cover more choke points.

Primed Ammo Stock got released and the 57 bullet cap feels way better than the reload speed from Primed Tactical Pump. But still it's up to you and your personal preference, they have the same polarity so no need to swap.

Run Shotgun Spazz as a budget riven substitute, the extra fire rate is much appreciated, unless you're running Arcane Tempo on your warframe, then look to add any mod that boosts your raw damage such as Vicious Spread .

You must run [Shell Shock] level 2 out of 3 in order to fit the build with the polarities of other configurations. Or you could just drop Galvanized Acceleration and run a maxed out Shell Shock, but the bullet speed and damage fall off on the secondary fire is noticeable. Sentence no longer true since Galvanized Savvy got removed from the build.

If you want to go check out my other configurations visit the links here (they all share the same forma/polarities):

• Bubonico Primary fire Corrosive General Gameplay 1st Config = https://overframe.gg/build/223663/
• Bubonico Primary fire Corrosive Plague Star 2nd Config = https://overframe.gg/build/216063/
• Bubonico Primary fire Rad/Viral/Cold Index 4th Config = https://overframe.gg/build/216066/
• Bubonico Primary fire Viral/Slash Steel Path lvl9999 5th Config = https://overframe.gg/build/234457/