If Valor Bard and War Domain Cleric can't be frontliners, how come Hexblade can be one?
Because warlock has devil sight and darkness combo for instance. It is far more powerful than having medium armor + shield proficiency.
But medium armor and shield proficiency is the only benefit of Hexblade over usual Warlock in this case, since Darkness doesn't care about Charisma. And unless your DM is very lax about Darkness squares, your other party members must have a lot of fun.
And Cleric and Valor Bard also get to play their classes strengths too.
And at the 13-14 lvl(possible lvl cap in BG3) you become just a little bit of everything but good at nothing
If they put level 13 and 14 I would be surprised. You can get to +4 and +5 modifiers at level 5 in two stats at 12, MAD is less of an issue there for non-Hexblades. And it's not like Hexblades gets better subclass features than other Patrons from 6 onwards, quite the opposite.
