Tiefling, Geryon Bloodline

ability score increase: +1 Str, +2 Chr

Size: Medium

speed: You have a base walking speed of 30 feet.

parent race: 793639

race features:
Hellish Stinger. Melee Weapon Attack +STR to hit, reach 5ft, one creature: Hit 1d4+Str piercing damage, and the target must make a DC (Constitution based).
Legacy of Coldsteel. You know the thaumaturgy cantrip. When 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 suggestion 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.

Tieflings that are of Geryon's bloodline all have a tail that has a stinger on the end. They tend to be a mixture of scales and lots of hair, but beyond that look much like their mortal bloodline