Which character class in Dungeons and Dragons 5th edition gains it's powers from making a pact with a being of higher power?

The character class in Dungeons and Dragons 5th Edition that gains its powers from making a pact with a being of higher power is the Warlock. Warlocks enter into a pact with a powerful entity, such as a fiend, celestial, or great old one, in exchange for access to supernatural abilities and spells. Through this pact, they forge a connection with their patron and leverage their otherworldly powers to shape the world around them.