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

While I understand the decision for DnD 4th and 5th Edition to present Tieflings as a race, I miss the unusual and unique Tieflings from 2nd Edition, further I have a great fondness for the ideas that Pathfinder introduced.

This then is my conversion of Pathfinder's Blood of Fiends to DnD 5th Edition.

Asura-Spawn Tiefling

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

Ability Score Increase. Your Dexterity score increases by 1, and your Wisdom score increases by 2.

Primordial Resistance. You have resistance to acid damage.

Primordial Legacy. You know the thaumaturgy cantrip.  Once you reach 3rd level, you can cast the tasha's hideous laughter spell once per day as a 2nd-level spell.  Once you reach 5th level, you can also cast the spiritual weapon spell once per day.  Charisma is your spellcasting ability for these spells. 

Faultspawn Feat

Prerequisite: Asura-Spawn Tiefling

• You add half your proficiency bonus, rounded down, to any weapon attack roll that doesn't already include your proficiency bonus.

• Divine spellcasters taking damage from you have disadvantage on their Constitution saving throw to maintain concentration.