Mirage's kit (and Zaws) is made of spaghetti, and as such is difficult to verbally explain in a short amount of time. If something I said sounded confusing, feel free to ask in the comments. Alright you can watch the video again. Or read the rest. You do you booboo.
As for archon shards, 2x str 2x casting speed 1x energy pick up is BiS.
If only running the standard build, 3x str 2x casting speed is also perfectly fine.
Standard build scales to level 700~ without any hiccups. Disruption build scales to 3000 without any effort (you don't even need to armor strip with a Viral zaw at level 3k to kill the demo)
Do not run higher than 339% total strength if running a corrosive Zaw, as Nourish with 340% and above strength will then give more than 255% Viral weighting, turning your damage type into Viral instead of Corrosive, lowering your damage output by an enormous amount. Obviously if running an armor strip build this is irrelevant as you should be running a Viral zaw anyway.
Why run two primers? Cedo is for mass AoE priming Corrosive/Viral/Heat for your abilities, Kompressa is for single target priming every status in the game for your weapons. You CAN run an Epitaph for a mix of both, but it is worse AoE than a Cedo, and worse ST than a Kompressa.
Kompressa applying every status also greatly buffs the Cedo due to its innate Condition Overload effect. Then in theory you could run a no-element Cedo, relying on nourish for ele weighting. Then slotting Hunter munitions + Laser scope in place of the ele mods to turn the Cedo into a shotgun of death, similarly to what I did on Nyx but even stronger.
0:00 Battle Versus a Raid Boss
0:18 Introduction
0:58 Weapon Loadout
3:28 Mirage vs. Mirage Prime
3:58 Old Silence Build
5:36 Standard Nourish
6:59 Armor Strip Builds
8:01 Disruption
8:30 Exodia Contagion
9:30 Focus Schools & Kitty Cat
10:05 Regulations
10:25 KPM
12:30 Survivability
15:11 Viability
18:08 Is she fun?
19:32 Conclusion
20:07 Outplayed