If you make it a Far Walker Mulhorandi Winged Tiefling Undying Warlock with a pact with Gilgeam The God King of Unther, and use the Cantrips Greenfire Blade and Booming Blade, who then converts to worship Torm in his new home in Waterdeep, and becomes an Oath of the Crown Paladin (multiclass) in service to Waterdeep you'll use more content.
You'd use the sections on Mulhorand, Unther, Far Walker background, Waterdeep, Tieflings, Torm, the Mulhorand Gods side bar, Warlock Patrons, The Undying Patron Section, the Oath of the Paladin eventually, cantrips, and possibly any nations that this Tiefling walked thru to get from Mulhorand to Waterdeep, like Unther obviously, but Chessenta, Turmish, Westgate, ect...
But this is pretty out there and an exception to the rule.