Older Beholder
Hero
I think at this point I’m going for a record of many things someone can get wrong about a single spell.I could be wrong, but I think Hex just causes disadvantage to ability checks, not saving throws.

I think at this point I’m going for a record of many things someone can get wrong about a single spell.I could be wrong, but I think Hex just causes disadvantage to ability checks, not saving throws.
It's pretty good vs a grappling monster...
Isn't hunter's mark a concentration spell too?
I think you mean weapon damage (ranged weapon attacks still work), but yeah, that is a significant difference.The BIG difference is Hex works with spell damage and Hunters Mark works with melee damage only.
When it is the DM, it is not a mistake it is a houserule.DM makes mistakes, it's just part of the game. It happens to all of us![]()
This is one advantage, although generally easily worked around.The big difference, depending on how strictly you interpret spell components, is you need a free hand to cast Hex.
I use it all the time as a Rogue to grapple or shove (dex or str) or to hide (wisdom). I use it a fair abount on social situations too when I know enough ahead of time that I can cast it from afar.Honestly, in all these years of playing 5e since it came out, there have been extremely few times in which Hex has been useful in its secondary application of lowering an ability check made a difference. Hex is a combat spell, it's obvious when it's cast, and it does not last long enough (see below) to make a difference in combat.
Moreover, it's concentration, if you're a caster, you have a better use for your concentration, and if you're martial, you will get hit often enough that you will lose your concentration anyway.
Frankly, there are many level 1 spells that are much more useful, are cast much more often, and are actually upcast, no-one in our groups has ever upcast hex. And honestly, paying a feat for that seems extravagant to me.
Not really, it's still very situational. And of course, you can adjust for it, but the DC of the grappling for most grappling monsters is fixed (escape DC 18 for the kraken for example), not linked to an ability score.
It is, but usually I have slots from something else too, either Arcane Trickster, Eldritch Knight or a wizard multiclass.It is, but at least the ranger (primary Hunter's Mark user) can certainly be ranged, and has enough spells to recast it, whereas if you take Hex through a feat, it's immediately very costly.