Tiefling Heritages: Kyton-Spawn for D&D 5th Edition

My conversion of Pathfinder's Blood of Fiends to DnD 5th Edition continues:

Kyton-Spawn Tiefling

(Unless otherwise noted, all traits are per the 5th Ed. Player's Handbook)

Ability Score Increase. Your Constitution score increases by 2, and your Charisma score increases by 1.

Vicious Resistance. You have resistance to cold damage.

Vicious Legacy. You know the thaumaturgy cantrip.  Once you reach 3rd level, you can cast the grease spell once per day as a 2nd-level spell.  Once you reach 5th level, you can also cast the web spell once per day.  Charisma is your spellcasting ability for these spells. 

Shackleborn Feat

Prerequisite: Kyton-Spawn Tiefling

• Your are proficient with the chain* as a weapon.  

• When wielding a chain, you may take the shoving a creature melee attack as a bonus action.

• You gain advantage on Charisma (Intimidate) checks.

Martial Melee Weapon

*Chain    5gp    1d6 bludgeoning    3 lbs.    Reach