The party fey

The party fey who is giving you your power wants you to go about and party. Playful chaos is the name of the game. Alignment doesn't matter as long as someone is having a good time. 

Party perks

Your Patron has allowed you to pick from a expanded spell list. Namely the Bard list.

Life of the party

Starting at 1st level, when you get reduced to 0 hit points, your party members gain temporary hit points equal to your Charisma modifier + your warlock level (minimum of 1).

Drunk luck

Starting at 6th level, you can call on your patron to alter fate in your favor. When you make an ability check or a saving throw, you can use this feature to add a d10 to your roll. You can do so after seeing the initial roll but before any of the roll’s effects occur.

Once you use this feature, you can’t use it again until you finish a short or long rest.

Chaotic Resilience

Starting at 10th level, one damage type is randomly assigned to you when you finish a short or long rest. You gain resistance to that damage type until a different one is assigned with this feature. Damage from magical weapons or silver weapons ignores this resistance.

Alcohol tolerance

After reaching level 14 you gain 20 temporary hit points when drunk.