race features: Infernal Legacy: Your infernal blood gives you following traits:
You gain advantage on all checks made against outsiders and their previous actions such as investigation.
You know the thaumaturgy,When you reach 3rd level, you can cast the hellish rebuke,When you reach 5th level, you can cast the darkness and regain the ability to do so when you finish a long rest. Charisma is your spellcasting ability for these spells.