Hello! This is my first build being posted here at Overframe, so please don't get mad at me if I got mistaken somewhere xD
I just really wanted to share my love with [Cedo], because it is a amazingly broken weapon, all thanks to the addition of galvanized mods. I honestly think it's the best non-AOE (disconsidering the glaives) weapon arround, and you can use it with any warframe.

Why I used each mod/arcane:

• Primed Chilled Grasp, [Contagious Spread] and [Blaze] are the best mods to get Viral + Heat, damage wise. You can use Toxic Barrage if you prefer the status chance, but 90% to 120% status chance for the "glaives" isn't really necessary.

• Galvanized Hell is OP. Yeah, that's all what we need to know.

• [Galvanized Savvy] is perfect for [Cedo] because of the imbued status procs of its glaives (toxin, electricity, cold and heat). All you need to do is hit the enemy with the discs before shooting.

• Primed Ravage and Critical Deceleration have the highest percentages for critical chance/damage. The only downside is the negative fire rate, but that's countered by Accelerated Blast.

• [Accelerated Blast] is quite the unusual mod, but it works perfectly with [Cedo] since it's only physical damage is puncture. You can also use the regular Shotgun Spazz or it's amalgam variation if you prefer more fire rate.

• [Galvanized Acceleration] is optional. It only affects the secondary shot's speed. I would normally recommend it, but you can use [Vigilante Supplies] instead if you can't mannage its ammo.

• Arcane Deadhead is used because of its additional headshot damage and higher buff duration. You probably won't find it hard to proc, since it's a shotgun.

------------- Primed Point Blank isn't used here because of the Arcane Deadhead's damage buff. --------------------

RIVEN RECCOMENDATION: Toxin and Fire rate (replace Contagious Spread). The best neggatives are + weapon recoil and - zoom.

I hope you all can enjoy [Cedo] just as much as me! Please leave a thumbs up if you enjoyed the build, it helps a lot! =)

EDIT: I removed [Blaze] since the blades already proc heat (you only need une proc to reduce armor), and replaced it with [Shrapnel Shot] since it's the best mod to replace it. You can also use [Primed Point Blank] or Primed faction mods if you please.