The Reason Zenos.

[Nezerius]

No, what we fought in the Menagerie was him testing out controlling a primal for himself... and he "offed himself" knowing what his power was capable of.

Except he wasn't just "testing out". The fight at the end of the Ala Mhigo dungeon proved that we could handle him at full power, so he fused with Shinryu thinking it'd give him the edge he needed to defeat us. Since we still manage to beat him up, he admits defeat, and then kills himself. His surprised reaction in the last cutscene of 4.3 indicates that his soul jumping to some random Resistance member wasn't something he planned.

And everything you mentioned and more could happen. As far as seeing a villai be defeated... you can argue that on any villain we've had in this whole game. Killing the WoL for what seems like permanently but ends up being temporary I find fascinating myself... But I digress.

So you pretty much agree with the point that you've been arguing against? He'll eventually lose against us.

I enjoy Zenos because he's not another navel-gazing or self-aggrandizing narcissist with a god complex. He's a combat addict and knows it. Final Fantasy doesn't need another copy of Kekfa or Exdeath. Give us a villain that keeps coming at us even after we are far beyond them on a personal level. Show us a reason to pity them, not based on their misuse of power, but rather that they as a person never grew at all.

So you basically want a stronger version of Grynewaht? Y'know, the Roegadyn who kept trying to kill us, to the point of comically being forced to retreat in a Team Rocket kind of way?