How to reconcile Tiefling's Infernal Legacy's Hellish Rebuke with

does hellish rebuke use a spell slot   Dan does three of a kind beat a straight in poker

It does take a spell slot and your reaction both, yes It's considerably more powerful than the average opportunity attack, which is what you'd

Bob and Sam discuss the spell Hellish Rebuke Our written review can be read here  It's a bonus spell Doesn't require a spell slot nor does it use up one of your memorized spells, or the spells you can use today

lottery numbers for tonight please Alrighty day 179! Today is Hellish Rebuke The tiefling spell (Yes not every tiefling variant @JeremyECrawford If I'm playing a Tiefling Bard, who knows Hellish Rebuke as a racial spell, does this spell use up one of my spell slots?