Through skill vendors, I upgraded Firepower twice fairly early in my run, so my early and midgame focused on using Companion Core to buff Zoarcid and Nanobot. Once I got Dooltron, it became the main damage dealer. Launch Pad has the heavy enchant with two slow buffs, so it slows for 3s with every friend use and charges Shiny GRN-W4SP, while also dealing a decent amount of burn. Nanobot is used to start the build at 4s; if I had diamond Companion Core, it could be replaced with Hammlet or RED-F1R3FLY.
