Chaosmancer
Legend
Wow, all that discussion and no one came up with the most thematic/cheesy blade warlock combo.
Get Devil's Sight to see in magical darkness, cast Darkness on yourself, fight in melee as the only guy who can see. Good combo mechanically, and thematically you are a moving cloud of darkness that cuts those who enter it.
Also, Pact of the Blade allows you to always be armed (useful when captured or approaching someone of importance) and the weapon can change depending on your needs. I'd stick with a finesse weapon, but if your rapier isn't good because the creature is resistant to piercing, change it to a maul and deal bludgeoning.
I won't deny Eldritch blast it's top spot, but Blade warlocks despite being a little MAD are still very good.
Get Devil's Sight to see in magical darkness, cast Darkness on yourself, fight in melee as the only guy who can see. Good combo mechanically, and thematically you are a moving cloud of darkness that cuts those who enter it.
Also, Pact of the Blade allows you to always be armed (useful when captured or approaching someone of importance) and the weapon can change depending on your needs. I'd stick with a finesse weapon, but if your rapier isn't good because the creature is resistant to piercing, change it to a maul and deal bludgeoning.
I won't deny Eldritch blast it's top spot, but Blade warlocks despite being a little MAD are still very good.