Hellwalker

Your exposure to the magical hazards of a blasted, hellfire-wreathed landscape has forced you to develop supernatural resilience simply to survive. The ways of shadow and flame grant you the following benefits.

• Increase your Constitution score by 1, to a maximum of 20.
• Whenever you take fire damage, you can use your reaction to gain resistance to fire. This resistance lasts until the start of your next turn.
• You learn the hellish rebuke spell and you can cast it once as a 1st-level spell without expending a spell slot. You regain the ability to cast it in this way when you finish a long rest.