None of those have been build up to be as powerfull as Nagash currently is though. They might eventually be as powerfull and achieve something as desastrous as the necroquake. But currently all three of those are simply mustering their strength. They're not a world-ending threat yet. Nagash was well on his way, unleashing spirits, attacking everything, driving back every single grand allegiance.
Essentially based on what GW has actually shown currently Nagash is the biggest threat. And they're now telling us there's apparently something even more dangerous somewhere off-screen, and of course Teclis already knew that and is dealing with it. Which is simply bad storytelling....
Chaos has
always been considered a greater threat than Nagash except for some very brief and confined moments in the history of this universe. And recently has not been one of those times, certainly not to the elves.
Tyrion being off "dealing with" some yet unnamed threat is just a tease at some future story, and not actually part of the current story. It's not resolved, he hasn't necessarily won, and it doesn't mean anything yet.
Further, I'm quite sure it'll relate to Chaos, which is absolutely a greater threat than Nagash.
The issue is that the grand death allegiance under Nagash has been build up to be the single most powerfull force, capable of threatening every other major faction without ever overextending itself and thus with no real risk. Essentially Death under Nagash has been build up to be nigh unstoppable. And now some random aelven nation shows up and singlehandedly does what the combined forces of Order Destruction and Chaos could not even come close to; They invade Shyish without too much issues simply to piss off Nagash, then kill a major luitenant of Nagash as he sallies out into their realm, and then bait Nagash, who so far has never activly joined the fighting, into sallying out as well. After which he promptly gets killed in the first battle he's actually in in AOS.
I think you're overselling Nagash, underselling Teclis, and exaggerating the accomplishment of the Lumineth here.
Grand Allegiance Death has been built up to be about as powerful as any of the other Grand Allegiances. It only seems more dramatic because it has a single overlord and is not
as prone to infighting as some of the other Grand Allegiances. And yes, of course, when they defend a single point like the Black Pyramid, they're obviously a tough nut to crack even in a 3v1. That's just Economy of Force.
Another example of Economy of Force is when the forces of Death are assailed by an extreme concentration of elven power. The Lumineth send a massive force to do a lightning raid in Shyish and topple some statues.
Keeping in mind that each Realm is much larger than the Earth, Death is a bit spread out here. It's not absurd at all to think that a sudden strike of Teclis's personal army could
rock a locale in Shyish. It's not like they *took* Shyish. Very far from it.
So Nagash's Mortarchs sally out. They all undermine one another and are resoundingly crushed because of it. Completely in-character. Eltharion gets his well-earned revenge in single combat. A duel which would've been hard for him to lose, frankly.
So several Mortachs have been defeated and Nagash has to be livid by now after being embarrassed by a lightning raid and his own pupils' incompetence.
So what would the second most arrogant SOB in all of WFB and AoS do when he's embarrassed and angry?
Personally rush to the realm of Light to challenge the God of Magic? Sure. Absolutely he would. He's completely driven by selfish anger and always has been for decades, even when he appears temporarily reserved.
And Teclis isn't some nobody God of Magic we've never heard of before. He's a long and storied character just like Nagash. Not some upstart "mary sue." An extremely capable person, and in his own domain.
Nagash acts upon his own arrogant character and lashes out at Hysh, choosing to fight the Lumineth, the God of Magic, and the literal realm itself.
And he loses. And he loses
bad. Of course he loses! He bit off way more than he could possibly chew. This isn't some improbable thing that happened to poor Nagash. How could he have possibly prevailed in the situation he put himself in?
Just because it's rare for the good guys to win a crushing victory in fiction doesn't mean it doesn't make sense or that it's the result of Mary Sue writing. The sequence of events in BR: Teclis is logical and proceeds logically.
Including Teclis, who is also arrogant, ignoring Allarielle's Psychic Skype calls warning him that he never should've done this and the repercussions will be severe.
And now we have a wide open Shyish ready for the Soulblight Vampires to take command of Nagash's legions. Civil Wars loom, the search begins for a way to revive Nagash (who, obviously, is not gone forever) begins, at least four Mortachs will want to claim Shyish, and new characters can arise. Possibilities are endless both for the official story and for players creating their own homebrew Death armies with their own goals and motivations beyond "They're slaves to Nagash."
And that's
good storytelling.
The only error in judgement is "Teclis ended the Necroquake." But that's not nearly as big a deal as people are making it out to be. They can clarify that in short order without even retconning it. "Teclis ended most of the effects of the Necroquake" would suffice. He is a
God of
Magic after all.
Essentially the LRL are a bunch of marie sues winning an undeserved and impossible victory. While on the other hand Death which was build up to be unstoppable, suffers a humiliating defeat out of nowhere losing their god the first time he actually enters combat.
Which again, bad storytelling....
I don't like the "Mary Sue" accusation in general, it's bad vibes. But it's especially unearned here. The LRL are new to the scene, yes, but that's literally meaningless in the big picture. Broken Realms is the story and BR: Teclis is one chapter. They won a big victory. But it's far from over and we're even told that.
Their victory was not undeserved and not impossible at all. Again, they didn't
take Shyish. They raided a locale, which is well within their power.
Death was never built up as unstoppable except in their own Battletomes, which like all others, are propaganda.
Nagash's humiliating defeats is completely his own fault, but came about by acting in-character. He'll be back. In the meantime, power vacuums are story opportunities.
And that's not bad storytelling.
I guess the one (major?) difference is that Nagash was in Teclis' home realm instead of battling in his own realm of death. Still, I call shenanigans.
