The Archfey is one of the most traditional warlock Patrons in Dungeons & Dragons Fifth Edition. Making a pact with a powerful fey creature turns a warlock into a master of deception, enchantment, and illusion. The Archfey Patron makes for less of a combat-oriented warlock in return for one who can shine in most other circumstances.
Source:https://www.cbr.com/dnd-5e-archfey-warlock-build-guide/