One who has made a pact with dark forces for great power. With this pact they are allowed great power with very little variety but they can use their magic unlimited times per day.
A warlock can use his Dexterity to dodge and flip with acrobatic precision as long as he does not have any Armor past +3.
He uses his Constitution to resist having his Invocations messed up.
They use their Charisma to charm, terrorize, or intimidate others.
Eldritch Blast based on Charisma. Range is Charisma + Level. Damage is 1d8 from 1st to 4th level, 1d10 from levels 5th to 8th, 1d12 from 9th to 10th, And finally 1d20 from on up. They get Infernal Invocations that they can always use.
Least 1 Every 4 levels
Lesser at 5th level then every 4 levels.
Greater at 9th level then every 4 levels
Dark at 11th level then every 4 levels.
Armor: Ring mail or less.
Weapons: Warlocks prefer any simple type weapons such as short swords, rapiers, spears, staves and daggers. Not that it matters as Warlocks are sorry fighters.
Hit Points: 6 +1d6 a level
Natural 20: On a natural 20 the Warlock may gain half the damage done to his own hit points.
Infernal Invocations are the powers of a Warlock.
Dark Charm gives +2 to Charisma.
Dark Luck gives Charisma Bonus to all saves.
Dark Strike adds Eldritch Blast damage to weapon strike.
Darkness gives -4 to hit to enemies in Charisma radius in feet. Dark Sight can see in darkness 60 feet.
Demon Spear doubles Eldritch Blast Range.
Devil's Jump adds Charisma bonus + level to jump distance.
Drain Blast adds Slowing effect to Eldritch Blast.
Fright Blast add Fear to Eldritch Blast.
Seer of the Dark can see the invisible.
Vampire Touch damages for 1d6 but give the Warlock 1d6 healing.
Chain Blast hits multiple opponents in a row equal to Charisma Bonus plus level.
Cold Hell Blast does extra 1d6 damage.
Cut Ties Blast does damage and save or ends any magical effect if no save is made.
Dark Walk means invisibility at will.
Dead Minion summons minor undead equal to Charisma bonus plus Level.
Despair gives -2 to everyone in Charisma + level area.
Devil Charm gives +4 to Charisma.
Devil Run means the Warlock has double the movement.
Hellfire Blast adds fire to Eldritch Blast 1d6 a round save ends.
Shadow Blast adds Darkness to Eldritch Blast.
Confusing Blast confuses enemies.
Dark Whirlwind Blast makes conical blast 10 feet plus Charisma bonus wide.
Demon Acid Blast does 1d10 a round and takes away magical enchantment.
Hellfire Barrier does 1d6 per level and is Charisma in feet long.
Plague Blast does 1d12 a round save ends.
Spell Eater ends spell of lower caster and heals 2 hit points per level of caster.
Tentacles and Thorns in Charisma in feet and all take 1d12 in the tentacles and thorns.
Demon Form allows the warlock to change into a Demon.
Hell's Armor stops damage equal to level unless magic is used.
Out of the God's Sight is invisibility but is dispelled there is a blast in Charisma radius that does 1d6 a level.
Wraith Drain Touch damages 1d6 levels and gives that much in healing.