I’m positive the ASE damage annointments are bugged/have unintentional interactions, causing the arks to multiply, which causes its strength to multiply to insane amounts.
Basically, to add additional damage, the game creates another “bullet” on impact, stacked on top of one another. So with two on ASE +50% annointments, it creates three bullets, one from the original, and two extra. The red text is applying to all three “bullets”, which is the unintended reaction. Thus, each have a chance to proc the lightning ark, and once it hits another enemy, it repeats the cycle of three bullets, and so on. This makes it extremely potent versus mobs. Brainstormer is extremely strong without them, but the ASE annointments make it even stronger, more than the +100%, by creating additional projectiles.
This interaction is why the Recursion is ridiculously strong, but it’s hard to see the number or arks on the brainstormer to confirm, but I’m sure the same holds true.
Moxsy’s video explains it well: