Jeremy Crawford on X: Infernal Legacy gives a tiefling the ability to

does the if you do clause check? If Lilah is on the battlefield and I cast a plotted spell will lilah trigger and plot the spell again

It takes 2d10 fire damage on a failed save, or half as much damage on a successful one When you cast this spell using a spell slot of 2nd level or higher, the

does hellish rebuke use a spell slot Hellish Rebuke is a Level 1 evocation spell This spell allows Properties Cost: Reaction + Level 1 Spell Slot; Damage D10

does lucky devil slot pay real money You point your finger, and the creature that damaged you is momentarily surrounded by hellish flames The creature must make a Dexterity saving throw