Hexes don't become useless, neither do daggers. Still, there's much better ways of winning then the least reliable tool you could find.
Of course, nobody forces you to just train hexes. But in zot you would have been better off training something useful. However, maybe hexes are the reason you were able to get to zot.
if you can win with a hexer by not killing OOFs and not killing aliches, you could also not kill oofs and not kill aliches with any number of other tools.
I think tabstorm put it best...
tabstorm wrote:-late game melee
*holds down o and tab* nothing matters lol
-late game conjurer
Just cast fire storm, chain lightning, ball lightning, glaciate, etc. my man.
-late game hexes
The deep troll shouts! (x3)
The deep troll earth mage shouts!
The stone giant shouts!
Casting: Confuse (25%)
The stone giant resists.
Casting: Confuse (25%)
The stone giant resists.
...
You stab the stone giant with a rapier. You freeze the stone giant.
...
You kill the stone giant!
Why did I train these skills again?
The problem is, hexes costs the same amount of XP as those better skills. Maybe if hexes is intended to only be 75% useful it should cost 75% of the normal XP cost?