Unfortunately for the warlock, eldritch invocations are specifically referred to as magical abilities and would not function in an anti-magic field.
Does Antimagic Field remove curses?
Yes. The antimagic field spell “suppresses any spell or magical effect used within, brought into, or cast into the area”. Also, “a magic sword does not function magically within the area”. Since curses are magical in nature, they are supressed when brought within the confines of the field.
How many times can you use Hexblade curse?
Three times. Each attack roll has its own separate damage roll. The damage roll of a maul is 2d6, so when you hit with a maul you roll 2d6 and add whatever modifiers apply to the damage roll (usually just strength, but also rage damage, hexblade’s curse, etc).
Can you use hex and Hexblade curse?
Yes, in fact, you can stack Hexblade Curse with other Spell like Hex or other concentration spelll, because Hexblade Curse doesn’t require concentration. Then, add in you Channel Divinity (like Sacred Weapon or Vow of Enmity).
How much damage can a warlock add to Hexblade?
Would my Warlock (Level 5) be able to add +3 to each hit added on top of the Hex damage? Adding up to +12 to each round. (+3 for Eldritch Blast 1, +3 for #2, +3 for Hex 1, +3 for Hex 2).
Is the Hexblade curse an extra damage roll?
Farwulf, Since Hex is an extra D6 damage roll to an attack that you hit with and Hexblades Curse literally says it’s “ +3 bonus to damage rolls against the cursed target” I would say yeah maybe you could add it to every die that you roll for damage, but I would talk to your DM about it before game and see how they want to rule it.
Is the Hexblade Warlock linked to sentient weapons?
Well, the official Hexblade class is not linked to sentient weapons (that was fluff from the UA article). They are instead linked to an entity in the Shadowfell associated with the creation of sentient weapons.
Can a Hexblade be used as a blade Pact?
Maybe your DM can homebrew something so that the weapon has properties which unlock either at different levels or when you perform tasks for your Patron. As for a Blade Pact Hexblade, yes there is an extra benefit conferred, it can be found in the Hex Warrior ability.