Warlock Level	Feature
1st	Touched by the Six
6th	Chose of the Six
10th	Herald of the Six
14th	Avatar of the Six

Touched by the Six

Beginning at 1st level you choose an ability score. That ability score represents the pact bond you create with your patron, and will determine your Pact Boon features. You gain advantage on saving throws and proficiency with skill checks made using your chosen pact ability, or expertise if you were already proficient. Additionally you can use your associated pact ability as your spellcasting ability, and you gain the associated bonus listed below:

Touched by Meridei. Once per short or long rest when you hit a creature with a melee attack you can double the weapon's damage dice.
Touched by Leng. Your walking speed increases by 10, and once per short or long rest you can treat your initiative roll as a natural 20.
Touched by The Tarrasque. Your hit point maximum increases by 1, and an additional 1 for each level thereafter.
Touched by The Illurien. You gain proficiency in one Intelligence skill, tool, and learn one language of your choice.
Touched by Pleroma. You gain proficiency in one Wisdom skill of your choice, and you cannot be surprised.
Touched by Hastur. You gain expertise in two Charisma skills of your choice.

Chosen of the Six

At 6th level you can cast Enhance Ability at will, but can only provide the bonus indicated by your chosen pact, and you gain the associated bonus listed below:

Chosen of Meridei. You can cast Bull's Strength at will. Additionally Critical hits against you are treated as normal hits, and you have advantage on saves against being paralyzed.
Chosen of Leng. You can cast Cat's Grace at will. Additionally you cannot be knocked prone, and you have advantage on saves against being paralyzed.
Chosen of The Tarrasque. You can cast Bear's Endurance at will, and you are immune to both magical and nonmagical poisons and diseases.
Chosen of The Illurien. You can cast Fox's Cunning at will, and you are immune to Psychic damage, and the Frightened condition.
Chosen of Pleroma. You can cast Owl's Wisdom at will, you are immune to the Blinded and Deafend conditions, and hidden or invisible creatures do not gain advantage on attack rolls made against you.
Chosen of Hastur. You can cast Eagle's Splendor at will, and you are immune to the Charmed and Possessed conditions.  

Herald of the Six

At 10th level you gain advantage on saving throws and ability checks with your chosen pact, and gain the associated bonus listed below:

Herald of Meridei. Once per short or long rest when you would miss with a melee weapon attack, you can choose to hit. When you do you double the damage dice, shove the target 10 feet and it is prone.
Herald of Leng. Once per short or long rest as a reaction, when you would take damage from a weapon or spell, the damage is reduced to 0 and you can take a disengage action.
Herald of The Tarrasque. Oncer per short or long rest when you would be reduced to 0 hit points, you regain a number of hit points equal to your level + your Constitution modifier.
Herald of The Illurien. Once per long rest as an action, each creature in a 60-foot cone must make an Intelligence saving throw or take 8d6 + your intelligence modifier psychic damage and 2 levels of exhaustion. Creatures take half damage and 1 level of exhaustion on a successful saving throw.
Herald of Pleroma. Once per long rest as an action you can grant all allies within 30 feet of you advantage, and all enemies within 30 feet of you must make a Wisdom saving throw or have disadvantage on their next attack roll, saving throw, ability check, and skill check made before the end of your next turn.
Herald of Hastur. Once per long rest as a reaction, when a creature attacks you it must make a Charisma saving throw or be affected by a Dominate Monster spell with duration 1 minute. When you use this ability, the next successful attack made against you before the start of your next turn is reduced to 0, and you regain hit points equal to 1d10 + your charisma modifier.
 

Avatar of the Six

At 14th level your chosen pact ability score and ability score maximum increases by 2. Additionally when you would fail an ability check, saving throw, or skill check with your associated pact ability, you can choose to succeed instead. You can use this ability 3 times per short or long rest.