Request: "Endless" mode battle against the 7.3 trial boss

[PorxiesRCute]

(Spoilers, obviously.)

OK hear me out. Necron is a primal that's supposed to get stronger every time you kill it. What if that actually happened? I want a version of the fight where every time you kill it, its health bar refills and it powers up. No enrage, no way to actually win. (Edit with realization: I guess you'd technically "win" if you made it to the lockout without wiping, but how likely is that?) Instead there can be rewards and bragging rights based on how long you last.