Nilfgaard is too diverse which is unhealthy for the game. I see why most players hate this faction.

I remember adoring enemies using Nilfgaard decks until I kept facing them on rank matches. And I'm not even that high on the ladder.

It has one too many archetypes available to play under this faction: one too many variants for clog and mill archetypes.

1. Control and disruption: lock, spying, etc.
2. Banish thinning enemy deck through Kingslayer
3. Control and destroy: Vilgefortz, Yennefer: Invocation (Yennefer isn't even aligned with NG, lore-wise)
4. Disloyal and Assimilate
5. Hyperthin
6. Siege engines (surprisingly, thought this is exclusive to Northern realms)
7. Midrange, quite close to point-slam
8. Tactics, non unit plays
9. Viper Witcher deck (encountered a few on lower rank)

And I'm pretty sure I miss the rest of the archetypes. Feel free to point out the archetypes I missed.

And this is pretty much coming from an newbie with little experience with ladder and the game as a whole.

Nilfgaard diversity is unhealthy. The rest of the factions should be diversified, not just this faction. I see why most players hate nilfgaard. I'm starting to hate it too. I'm remember adoring a well played nilfgaard deck but now I'm starting to loathe it to the point that no matter how good the game is, players using Nilfgaard decks don't deserve a GG.