

In the Gif the Nagantaka is not potato'd. So the more powerful the weapon, hypothetically, the more spread damage from killing one of the Mecha Set's Marked Target. I think this is poor phrasing and I believe it is the player's Primary weapons status affect. It states, "their status effect" which I took to mean the Kubrows. I believe from testing that it goes off the status affect of the Primary weapon itself, even though the tooltip of the Warframe Mod says otherwise. Within the first GIF the kubrows marked target was the only thing killed which spread to instantly kill all 8 level 130 Arid Lancers. Usually extremely quickly as seen in the video with level 130 targets.

The Mecha Set operates by creating one or more focus targets that if you kill creates an explosion which kills everything within 30m. For example, this Kubrow had viral damage (frost jaw + venom teeth) but I don't think this applies as the Kubrow did not attack any targets to apply it's status affect. In the cases of personal testing, discussions on Reddit and YouTube comment sections, the conclusion is that the affects of the damage seem to be based off the primary weapon. The Warframe Wiki and the Mods itself lack a lot of description so there is some discussion as to how the Set actually works. The Daikyu and Mutalist Cernos and other high status effect weapons also work well. In this video the Nagantaka crossbow is used which has a base status of 39%, paired with the Kubrow it leads the Kubrow have 34% status. The set is then synced with a high status weapon.

Two Mods are placed on the Kubrow ( Mecha Overdrive and Mecha Recharge) and two mods are placed on the Warframe ( Mecha Empowered and Mecha Pulse). This Warframe Kubrow build uses the 4-piece Kubrow Mecha Set.
