Bloodline of Dispater

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 Charisma score increases by 2, and your Dexterity score increases by 1.

age: Tieflings mature at the same rate as humans but live a few years longer.

Size: Medium

speed: Your base walking speed is 30 feet.

Languages: You can speak, read, and write Common and Infernal.

parent race: Tiefling

race features:
Size. Your size can be Small instead of Medium. Darkvision. Thanks to your infernal heritage, you have superior vision in dark and dim conditions. You can see in dim light within 60 feet of you as if it were bright light, and in darkness as if it were dim light. You can’t discern colour in darkness, only shades of grey. Hellish Resistance. You have resistance to fire damage. Legacy of Dis. You know the Thaumaturgy cantrip. Once you reach 3rd level, you can cast the Disguise Self spell once with this trait and regain the ability to do so when you finish a long rest. When you reach 5th level, you can cast the Detect Thoughts spell once with this trait and regain the ability to do so when you finish a long rest. Charisma is your spellcasting ability for these spells.