Hexblade

A hexblade was an arcane spellcaster who combined magical power with martial skill. A hexblade's power could manifest itself spontaneously, similarly to a sorcerer's magic, or be granted via a warlock pact.

"Hexblade. What a cool name! So is your sword evil or cursed or something? But you're evil right? ...Okay, now I don't like the name. Names aren't cool if they don't make sense. Like mine. The Xanathar. See? It's cool, and it makes sense!"

- The Xanathar

Hexblade Spells
If a bargain was made between a warlock and a being from the Shadowfell, the warlock's patron gave them access to certain powers, including a suite of spells that expanded the choices to fill their spell slots.

One of the benefits hexblades received from their patron was access to more spells from which to choose, beginning with the defensive shield and the offensive wrathful smite. After some advancement, the hexblade could choose to blur themselves with shadows or use branding smite to reveal an opponent hiding in shadow. Next, a hexblade warlock could use the blink spell to confound their enemies or charge their weapon with an elemental force for a time. At the next level of advancement they could learn to play mind tricks with phantasmal killer or staggering smite. And finally, when sufficiently advanced, a hexblade could infuse a weapon with enough power to blast a creature off the plane for a time or chill them to the bone with cone of cold.

Notable Hexblades

 * Orielen, a hexblade involved in the Zhentarim invasion of Shadowdale in.
 * Sithierel, a shadar-kai hexblade from the Shadowfell.