The great city of Dis occupies most of Hell's second layer. It is a place where secrets are uncovered and shared with the highest bidder, making tieflings tied to Dispater excellent spies and infiltrators.
Ability Score Increase. Your Dexterity score increases by 1.
Legacy of Dis. You know the Thaumaturgy cantrip. Once you reach 3rd level, you can cast the Disguise Self spell once as a 2nd-level spell. Once you reach 5th level, you can also cast the Detect Thoughts spell once. You must finish a long rest to cast these spells again with this trait. Charisma is your spellcasting ability for these spells.