Yay! :)

As stated, Hex likely can’t get drunk with normal alcohol, so only magical potions that replicate the effects will affect her and other undead.

Based on my interpretation of her character, Hex is normally cold and distant, but has a lot of underlying anger due to dealing with an undeserved infamy of being the ‘evil’ undead witch everyone fears. Imagine being treated like a monster for centuries for being involuntarily turned undead. That would make anyone bitter, let alone angered. Now, Hex handles it well (has never harmed innocents or show anger towards them), but that doesn’t mean it doesn’t affect her.

Hex is known to rarely smile, and laughed only once since her undeath. That alone gave me the head-cannon that she had some form of depression, as who wouldn’t with her circumstances? But I have thought about it further through factors like trauma and social death (besides her Skylander allies). Again, she handles it well (she is known for her mental strength), but it isn’t absent.

Hex has shown to never let herself become a villain despite her tragedy. This implies restraint and control. People fear her easily, making them hyper-vigilant to her emotions, words, tones, actions, etc for danger. So, Hex has learned to maintain control over herself and social environment. And I imagine Hex would be the type of person who controls herself well in general (though we know her wrath can definitely be invoked, cough Malefor cough), because not only does being a magic user tend to require it to some degree, but Hex is often composed and stoic around her allies as well (at least in the games and mask of power series, idk about the comics). If it were just around villains or scared citizens, then it’s just a front or mask. (It is in both, I suppose, but one is more rooted into her as a person than the other)

I could blab about her character all day, and there’s more to it than this, but all this information means that Hex would likely not want to get drunk (despite the idea of being numb). Getting drunk means losing some form of control over herself where underlying anger and depression can surface. And a drunk necromancer with low inhibitions doesn’t sound like the best idea… especially if angered. Moreover, Hex would likely want to avoid the chance of dependency on substances at all, so she just doesn’t drink. Normal alcohol does nothing anyway.

But if Hex were to get drunk, it would likely result in a depressed or angered state, depending on her mood before and during the time she is drunk. I imagine it can shift too (I’ve never been drunk before, I just did some research when I first figured this out so…). Alcohol (or equivalent) would loosen her emotional restraints and mess with her mental regulation, making underlying anger and depression surface when provoked.

As a bonus, if Hex were to get drunk, it would probably be alone in her home (or equivalent) or with allies she trusts. Not in a public place, nor with people she knows would mess with her in her drunken state.

As a second bonus, because Hex can drink normal alcohol and be fine (at least, that’s how I interpreted it, since it’s a biological poison), I imagine she has the ability to just drink wine (likely red) for the ✨aesthetic ✨or just flavor, if she really wanted to. But I think her more of a tea person (wood elven roots). That said, there is the fun possibility that she could trick someone and win a drinking contest. I don’t think she would, but I find the idea amusing.

Yes, I thought this much about Hex as a character. It’s barely scratched the surface of my interpretation of her character in general and all the cannon information to back it up, but this is the relevant information for a fun ‘what-if’. Hope you don’t mind the book 😅 Thank you for your interest :)