Well, the devs simply dont bother with balance regarding seasonal modes, since even if there's a super powerful strategy that comes up, next month the seasonal mode shifts, problem solved.
But this particular seasonal mode, wolf seasonal, its definitely not balanced, which doesnt mean it cant be fun.
The NR and SK are very favoured, due to their ability to spam a ton of points with witcher students, but like you said, it gets boring very fast, even if you're winning all the time.
I definitely misspoke in my reply to you. We're playing different faction decks but our boards end up looking similar, with all those witchers.
I'm finding this season playable, more so since the reward trees require you to play this mode. If the seasonal wasn't playable, I wouldn't be playing though. E.g. that seasonal last year, I think, where DLT was constantly spammed. I was too scared to try this deck in that mode, even though I crafted DLT for that purpose. I was just thinking that I'd mess up how you do that spamming. Hopefully that one won't make a comeback. It was pretty much insta-quit for anyone not playing that deck.
Today I played someone, maybe with a Sco deck, and I went a card behind to win R2. I thought that i'd be certain to lose the next round. But no, my Nor witcher deck won, maybe even quite comfortably with maybe my final Geralt play.
Just to complete those stupid seasonal reward trees or tree nodes has made me sometimes even just make sure I win one round even if I lose the match, as you progress for the round win. Nothing worse than wasting your time losing 2-0. Maybe surprisingly, I might complete that Vesemir tree, with some unexpected contracts being completed for a good amount of keys. I thought that I only might complete that node for Geralt which gives you the cardback. I haven't touched the other seasonal reward tree as there's nothing that I really want in it. I seem to be a cardback person.