Ah, but the discussion is particular to the arcane, not all magic, this is where @Tanaria is confused. When it comes to the arcane, night elves are extremely powerful and hvae been shown to be more advanced and knowledgeable and skilled with it - it doesn't mean they are unbeatable, or know everything - i mean we end up beating far more powerful and knowledgeable Eredar magicians like Archimonde and Kil'jaedan, we defeated Nightborne, night elves and blood elves too in various raids and dungeons, despite them being more advanced, knowledgeable and more powerful
Because we can find new things, can be creative.. this is the truth for blood elves, but same for night elves, and humans too.
Collectively though, the level of arcane knowledge, skill and excellence will simply be higher in the night elven races and factions that have continued practising magic all these years than it would be in the ones that have not - whether they are night elven (like the darnassians) or not (like blood elves, humans and others).. you , cannot think that Moonguard, Shen'dralar, Nightborne who've been at it for 10,000 years, from a level that was beyond the current level of other races (incl high elves), would somehow be worse or less accomplished.
However, you may have a point about blood elves' versatility with magic. It is a testament to their tenacity and drive, a credit to them, but the same potential exists in all elves.. so even if blood elves and void elves are pushing new magical frontiers, don't forget that night elves like the Shen'dralar are fanatical about arcane studie and knowledge, and we have night elven Illidari that we have been shown to be extremely hunry for more power and magic in fel.
So whiles yes blood elves have more magical versatility, when it comes to arcane, nature - the night elf is ahead, for fel, they races are probably equal as both night elves and blood elves are united in the Illidari faction and the Illidari are the game's most advanced fel magic users (yes more advanced than warlocks - who we know very few can actually handle fel (shown by the reluctance to give them green fire - and we know warlocks also use shadow, void and fire, with destro the only spec that can wield fel powerfully) so sorry orcs/humans and all races that can be warlocks, because blood elves and night elves are Illidari, these two races are better with fel. (individual warlocks exempted - burning legion warlocks, Eredar and Gul'dan could obviously wield a lot more fel - but they are cut down and out powered when coming up against Illidari) - and overall it may be that blood arcane, and fire advancements may make up for the difference - but there is no denying night elves' arcane mastery and leadership.
Blood elves are better at the light, blood magic, fire - for sure -- but I'm sorry, when it comes to pure arcane, nature magic and elemental knoweldge, the night elvles are ahead.
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This emphasises MAce's point, the strongest and greatest survived.
Totheldrinn's cull left the best and brightest around.
When the horde attacked, they didn't kill the night elves, they kill Immol'thar and Totheldrinn, - you can actually gain rep with the Shen'dralar that remain, this is likely an alliance thing now, or maybe horde too, but at some point, the horde drive them out - this si what the lore says, it didn't say kill.
So it's the cream of the crop, and they successfully wean themselves of addiction and demonic corruption according to the lore - this is also not shown, but told - but because it is told are you going to claim it's not relevant or true to the lore?
In the War of Thorns, the night elf race is culled, it's a genocide, fortunately not an extinction, the lore also points out specifically now, that the most highly skilled sentinels, priests and druids survived because they had been sent south and didn't get back in time. Also the mages and Highborne caste survive.. they don't take part in the conflict.. only 3 of them fight, the rest are employed to do portals.. their portalling ability would mean that no Highborne member, new or old would have been lost in the burning of the tree.. Mace is right, please think about the information you are given and what it means.
The Darnassian number landscape is very different now than it was pre-woT
And what does that matter I ask you? It doesn't.. it doesn't stop the Highborne been led and taught by phenomenally skilled mages and able to reproduce the great wonders of the kaldorei empire.. it also doesn't stop the other Darnassians from continuing with Druidism and Elunism either.. the culling doesn't mean everyone should go to the arcane again, or that nature is abandoned. The nightmare didn't do that for nature practitioners, even the sundering and threat of the legion's return didnt' do that for the mage practitioners who didn't join the Hyjal group.
While culling is bad, we know that even with a much larger mage proportion, some night elves will be druids, some priests and some mages, and they are at a stage where no one group is going to eclipse the other.
in the pre-sundering era, because of Azshara's wonders and the arcane was relatively knew and a major driving force in the peace and prosperity of the night elves, it became the biggest focus - this was in a world where they could beat everybody and there was no legion, also a world where nature wasn't' developed enough, but even in that world the Goddess was still worshipped and highly revered and the priesthood with it's secrets and ways were, even at the height of her power, second only to the Queen and her royal caste.
Even in the long vigil, where amongst the northern night elves (not the Shen'dralar or Nightborne bear in mind, or Moonguard in the stronghold), arcane practice had to be cut for fear of te legion, so nature dominated unopposed.
My point is, that the need for that suppression is gone, both the arcane supremacy age and nature supremacy age are gone - there is no need for either and there are good reason neither would dominate.. This is the age of balance, where night elves would be in the sort of balance that marked their greatest stage of progress, the time when all 3 facets were revered and practised.. this happened in the early stages of the pre-sundering era is what led to it's greatness, before arcane obsession overtook, and we know this wouldn't happen now.
This is why the night elves in theory should literally develop into the best of the dark elves and the forest elves the developers actually initially said they should be.
I for one am keen to see this occur in development. or I was anyway, before I just gave up on Warcraft. Why should I continue to be interested in a product tat even it's makers don't take that seriously.